10122011220 has 24 divisors (see below), whose sum is σ = 28341631584. Its totient is φ = 2699202976.

The previous prime is 10122011203. The next prime is 10122011231. The reversal of 10122011220 is 2211022101.

It is a super-2 number, since 2×10122011220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10122011196 and 10122011205.

It is a congruent number.

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, 84350034 + ... + 84350153.

It is an arithmetic number, because the mean of its divisors is an integer number (1180901316).

Almost surely, 2^10122011220 is an apocalyptic number.

10122011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10122011220 is an abundant number, since it is smaller than the sum of its proper divisors (18219620364).

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

10122011220 is a wasteful number, since it uses less digits than its factorization.

10122011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168700199 (or 168700197 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10122011220 its reverse (2211022101), we get a palindrome (12333033321).

The spelling of 10122011220 in words is "ten billion, one hundred twenty-two million, eleven thousand, two hundred twenty".