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122131320233312 = 25135373926592819
BaseRepresentation
bin11011110001001111101001…
…111101010101110101100000
3121000102122021200210221011102
4123301033221331111311200
5112001444420434431222
61111430204242133532
734503460653230255
oct3361175175256540
9530378250727142
10122131320233312
1135a07669350a35
1211845a500512a8
13531bc1b2361c0
14222328a49542c
15e1bdb1331d92
hex6f13e9f55d60

122131320233312 has 192 divisors, whose sum is σ = 264377693664000. Its totient is φ = 55189555918848.

The previous prime is 122131320233291. The next prime is 122131320233369. The reversal of 122131320233312 is 213332023131221.

122131320233312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1221313202333122 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43324340639 + ... + 43324343457.

It is an arithmetic number, because the mean of its divisors is an integer number (1376967154500).

Almost surely, 2122131320233312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122131320233312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132188846832000).

122131320233312 is an abundant number, since it is smaller than the sum of its proper divisors (142246373430688).

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

122131320233312 is a wasteful number, since it uses less digits than its factorization.

122131320233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 122131320233312 its reverse (213332023131221), we get a palindrome (335463343364533).

The spelling of 122131320233312 in words is "one hundred twenty-two trillion, one hundred thirty-one billion, three hundred twenty million, two hundred thirty-three thousand, three hundred twelve".