122111002312 has 128 divisors (see below), whose sum is σ = 266329244160. Its totient is φ = 51985059840.

The previous prime is 122111002297. The next prime is 122111002393. The reversal of 122111002312 is 213200111221.

It is a super-2 number, since 2×122111002312² (a number of 23 digits) contains 22 as substring.

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, 21713533 + ... + 21719155.

It is an arithmetic number, because the mean of its divisors is an integer number (2080697220).

Almost surely, 2^122111002312 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 122111002312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133164622080).

122111002312 is an abundant number, since it is smaller than the sum of its proper divisors (144218241848).

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

122111002312 is a wasteful number, since it uses less digits than its factorization.

122111002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903 (or 5899 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 122111002312 its reverse (213200111221), we get a palindrome (335311113533).

The spelling of 122111002312 in words is "one hundred twenty-two billion, one hundred eleven million, two thousand, three hundred twelve".