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121222210332 = 22323479916933
BaseRepresentation
bin111000011100101101…
…0000010001100011100
3102120220011222022212210
41300321122002030130
53441230341212312
6131404432400420
711520666533556
oct1607132021434
9376804868783
10121222210332
1147456860903
121b5b10a6110
13b57b487052
145c1d7b84d6
15324742be3c
hex1c3968231c

121222210332 has 48 divisors (see below), whose sum is σ = 295766231040. Its totient is φ = 38569827648.

The previous prime is 121222210321. The next prime is 121222210349. The reversal of 121222210332 is 233012222121.

It is a junction number, because it is equal to n+sod(n) for n = 121222210299 and 121222210308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326263 + ... + 590670.

It is an arithmetic number, because the mean of its divisors is an integer number (6161796480).

Almost surely, 2121222210332 is an apocalyptic number.

121222210332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121222210332 is an abundant number, since it is smaller than the sum of its proper divisors (174544020708).

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

121222210332 is a wasteful number, since it uses less digits than its factorization.

121222210332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917442 (or 917440 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121222210332 its reverse (233012222121), we get a palindrome (354234432453).

The spelling of 121222210332 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred ten thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 479 958 1437 1916 2874 5748 11017 22034 33051 44068 66102 132204 916933 1833866 2750799 3667732 5501598 11003196 21089459 42178918 63268377 84357836 126536754 253073508 439210907 878421814 1317632721 1756843628 2635265442 5270530884 10101850861 20203701722 30305552583 40407403444 60611105166 121222210332