122001213311312 has 20 divisors (see below), whose sum is σ = 240383746568640. Its totient is φ = 59966698067808.

The previous prime is 122001213311303. The next prime is 122001213311339. The reversal of 122001213311312 is 213113312100221.

It is a happy number.

It is a super-2 number, since 2×122001213311312² (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 3 ways as a sum of consecutive naturals, for example, 64619285768 + ... + 64619287655.

It is an arithmetic number, because the mean of its divisors is an integer number (12019187328432).

Almost surely, 2^{122001213311312} is an apocalyptic number.

It is an amenable number.

122001213311312 is a deficient number, since it is larger than the sum of its proper divisors (118382533257328).

122001213311312 is a wasteful number, since it uses less digits than its factorization.

122001213311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129238573490 (or 129238573484 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 122001213311312 its reverse (213113312100221), we get a palindrome (335114525411533).

The spelling of 122001213311312 in words is "one hundred twenty-two trillion, one billion, two hundred thirteen million, three hundred eleven thousand, three hundred twelve".