3111220121022 has 48 divisors (see below), whose sum is σ = 7259757614928. Its totient is φ = 957266323200.

The previous prime is 3111220121011. The next prime is 3111220121039. The reversal of 3111220121022 is 2201210221113.

3111220121022 is a `hidden beast` number, since 311 + 122 + 0 + 1 + 210 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3111220120986 and 3111220121004.

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 23 ways as a sum of consecutive naturals, for example, 7292518 + ... + 7707350.

It is an arithmetic number, because the mean of its divisors is an integer number (151244950311).

Almost surely, 2^{3111220121022} is an apocalyptic number.

3111220121022 is an abundant number, since it is smaller than the sum of its proper divisors (4148537493906).

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

3111220121022 is a wasteful number, since it uses less digits than its factorization.

3111220121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446905 (or 446902 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 3111220121022 its reverse (2201210221113), we get a palindrome (5312430342135).

The spelling of 3111220121022 in words is "three trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty-one thousand, twenty-two".