122111220322312 has 64 divisors (see below), whose sum is σ = 261646175715120. Its totient is φ = 52927718105088.

The previous prime is 122111220322253. The next prime is 122111220322313. The reversal of 122111220322312 is 213223022111221.

It can be written as a sum of positive squares in 8 ways, for example, as 56051485456516 + 66059734865796 = 7486754^2 + 8127714^2 .

It is a super-2 number, since 2×122111220322312² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122111220322313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74758143 + ... + 76374094.

Almost surely, 2^{122111220322312} is an apocalyptic number.

It is an amenable number.

122111220322312 is an abundant number, since it is smaller than the sum of its proper divisors (139534955392808).

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

122111220322312 is a wasteful number, since it uses less digits than its factorization.

122111220322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151132730 (or 151132726 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 122111220322312 its reverse (213223022111221), we get a palindrome (335334242433533).

The spelling of 122111220322312 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twenty million, three hundred twenty-two thousand, three hundred twelve".