22102120000 has 70 divisors (see below), whose sum is σ = 54806173598. Its totient is φ = 8840832000.

The previous prime is 22102119989. The next prime is 22102120039. The reversal of 22102120000 is 2120122.

It can be written as a sum of positive squares in 5 ways, for example, as 11036763136 + 11065356864 = 105056^2 + 105192^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 236277 + ... + 316276.

Almost surely, 2^22102120000 is an apocalyptic number.

22102120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102120000 is an abundant number, since it is smaller than the sum of its proper divisors (32704053598).

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

22102120000 is an frugal number, since it uses more digits than its factorization.

22102120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552585 (or 552560 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22102120000 its reverse (2120122), we get a palindrome (22104240122).

The spelling of 22102120000 in words is "twenty-two billion, one hundred two million, one hundred twenty thousand".