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121112010222 = 237210713129389
BaseRepresentation
bin111000011001011010…
…1101001110111101110
3102120121111121120202020
41300302311221313232
53441014133311342
6131345454411010
711515161046500
oct1606265516756
9376544546666
10121112010222
11473aa632935
121b580200a66
13b5616b1898
145c0cccdd70
15323c9100ec
hex1c32d69dee

121112010222 has 96 divisors (see below), whose sum is σ = 286584946560. Its totient is φ = 34017197760.

The previous prime is 121112010197. The next prime is 121112010223. The reversal of 121112010222 is 222010211121.

Adding to 121112010222 its reverse (222010211121), we get a palindrome (343122221343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112010223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4106304 + ... + 4135692.

It is an arithmetic number, because the mean of its divisors is an integer number (2985259860).

Almost surely, 2121112010222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121112010222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143292473280).

121112010222 is an abundant number, since it is smaller than the sum of its proper divisors (165472936338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121112010222 is a wasteful number, since it uses less digits than its factorization.

121112010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29646 (or 29639 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The spelling of 121112010222 in words is "one hundred twenty-one billion, one hundred twelve million, ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 107 131 147 214 262 294 321 393 642 749 786 917 1498 1834 2247 2751 4494 5243 5502 6419 10486 12838 14017 15729 19257 28034 29389 31458 38514 42051 58778 84102 88167 98119 176334 196238 205723 294357 411446 588714 617169 686833 1234338 1373666 1440061 2060499 2880122 3144623 3849959 4120998 4320183 6289246 7699918 8640366 9433869 11549877 18867738 22012361 23099754 26949713 44024722 53899426 66037083 80849139 132074166 154086527 161698278 188647991 308173054 377295982 411945613 462259581 565943973 823891226 924519162 1131887946 1235836839 2471673678 2883619291 5767238582 8650857873 17301715746 20185335037 40370670074 60556005111 121112010222