1231122031122 has 16 divisors (see below), whose sum is σ = 2464946865792. Its totient is φ = 409923543120.

The previous prime is 1231122031109. The next prime is 1231122031193. The reversal of 1231122031122 is 2211302211321.

It is a super-2 number, since 2×1231122031122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112610893 + ... + 112621824.

It is an arithmetic number, because the mean of its divisors is an integer number (154059179112).

Almost surely, 2^{1231122031122} is an apocalyptic number.

1231122031122 is an abundant number, since it is smaller than the sum of its proper divisors (1233824834670).

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

1231122031122 is a wasteful number, since it uses less digits than its factorization.

1231122031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225233633.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1231122031122 its reverse (2211302211321), we get a palindrome (3442424242443).

The spelling of 1231122031122 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-two million, thirty-one thousand, one hundred twenty-two".