22120210100 has 36 divisors (see below), whose sum is σ = 48049507968. Its totient is φ = 8839116000.

The previous prime is 22120210069. The next prime is 22120210157. The reversal of 22120210100 is 101202122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12506 + ... + 210705.

Almost surely, 2^22120210100 is an apocalyptic number.

22120210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120210100 is an abundant number, since it is smaller than the sum of its proper divisors (25929297868).

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

22120210100 is a wasteful number, since it uses less digits than its factorization.

22120210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224216 (or 224209 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22120210100 its reverse (101202122), we get a palindrome (22221412222).

The spelling of 22120210100 in words is "twenty-two billion, one hundred twenty million, two hundred ten thousand, one hundred".