12220111000 has 32 divisors (see below), whose sum is σ = 28595062080. Its totient is φ = 4888044000.

The previous prime is 12220110997. The next prime is 12220111019. The reversal of 12220111000 is 11102221.

It is a super-2 number, since 2×12220111000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 6109056 + ... + 6111055.

It is an arithmetic number, because the mean of its divisors is an integer number (893595690).

Almost surely, 2^12220111000 is an apocalyptic number.

12220111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220111000 is an abundant number, since it is smaller than the sum of its proper divisors (16374951080).

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

12220111000 is a wasteful number, since it uses less digits than its factorization.

12220111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220132 (or 12220118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12220111000 its reverse (11102221), we get a palindrome (12231213221).

The spelling of 12220111000 in words is "twelve billion, two hundred twenty million, one hundred eleven thousand".