10221112120 has 16 divisors (see below), whose sum is σ = 22997502360. Its totient is φ = 4088444832.

The previous prime is 10221112091. The next prime is 10221112123. The reversal of 10221112120 is 2121112201.

It is a super-2 number, since 2×10221112120² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221112120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221112123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127763862 + ... + 127763941.

Almost surely, 2^10221112120 is an apocalyptic number.

10221112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221112120 is an abundant number, since it is smaller than the sum of its proper divisors (12776390240).

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

10221112120 is a wasteful number, since it uses less digits than its factorization.

10221112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255527814 (or 255527810 counting only the distinct ones).

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

Adding to 10221112120 its reverse (2121112201), we get a palindrome (12342224321).

The spelling of 10221112120 in words is "ten billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty".