1000122211120 has 40 divisors (see below), whose sum is σ = 2325332169216. Its totient is φ = 400040621568.

The previous prime is 1000122211111. The next prime is 1000122211157. The reversal of 1000122211120 is 211122210001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1000122211120.

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, 5067409 + ... + 5261071.

Almost surely, 2^{1000122211120} is an apocalyptic number.

1000122211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000122211120 is an abundant number, since it is smaller than the sum of its proper divisors (1325209958096).

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

1000122211120 is a wasteful number, since it uses less digits than its factorization.

1000122211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258229 (or 258223 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000122211120 its reverse (211122210001), we get a palindrome (1211244421121).

It can be divided in two parts, 100012 and 2211120, that added together give a palindrome (2311132).

The spelling of 1000122211120 in words is "one trillion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty".