1022211121122 has 48 divisors (see below), whose sum is σ = 2267788187808. Its totient is φ = 332594015040.

The previous prime is 1022211121117. The next prime is 1022211121181. The reversal of 1022211121122 is 2211211122201.

It is a super-2 number, since 2×1022211121122² (a number of 25 digits) contains 22 as substring.

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 = 1022211121095 and 1022211121104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745222 + ... + 1612382.

It is an arithmetic number, because the mean of its divisors is an integer number (47245587246).

Almost surely, 2^{1022211121122} is an apocalyptic number.

1022211121122 is an abundant number, since it is smaller than the sum of its proper divisors (1245577066686).

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

1022211121122 is a wasteful number, since it uses less digits than its factorization.

1022211121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868735 (or 868732 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1022211121122 its reverse (2211211122201), we get a palindrome (3233422243323).

The spelling of 1022211121122 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".