20120122211000 has 96 divisors (see below), whose sum is σ = 54767794021200. Its totient is φ = 6898327598400.

The previous prime is 20120122210961. The next prime is 20120122211051. The reversal of 20120122211000 is 11222102102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 205258370 + ... + 205356369.

Almost surely, 2^{20120122211000} is an apocalyptic number.

20120122211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120122211000 is an abundant number, since it is smaller than the sum of its proper divisors (34647671810200).

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

20120122211000 is a wasteful number, since it uses less digits than its factorization.

20120122211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410614774 (or 410614753 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20120122211000 its reverse (11222102102), we get a palindrome (20131344313102).

The spelling of 20120122211000 in words is "twenty trillion, one hundred twenty billion, one hundred twenty-two million, two hundred eleven thousand".