1213113231022 has 36 divisors (see below), whose sum is σ = 2326685316480. Its totient is φ = 472641513960.

The previous prime is 1213113231017. The next prime is 1213113231041. The reversal of 1213113231022 is 2201323113121.

It is a super-2 number, since 2×1213113231022² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1213113230984 and 1213113231002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51139822 + ... + 51163537.

It is an arithmetic number, because the mean of its divisors is an integer number (64630147680).

Almost surely, 2^{1213113231022} is an apocalyptic number.

1213113231022 is a deficient number, since it is larger than the sum of its proper divisors (1113572085458).

1213113231022 is a wasteful number, since it uses less digits than its factorization.

1213113231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102303397 (or 102303379 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213113231022 its reverse (2201323113121), we get a palindrome (3414436344143).

The spelling of 1213113231022 in words is "one trillion, two hundred thirteen billion, one hundred thirteen million, two hundred thirty-one thousand, twenty-two".