22202121100 has 18 divisors (see below), whose sum is σ = 48178603004. Its totient is φ = 8880848400.

The previous prime is 22202121079. The next prime is 22202121133. The reversal of 22202121100 is 112120222.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111010506 + ... + 111010705.

Almost surely, 2^22202121100 is an apocalyptic number.

22202121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202121100 is an abundant number, since it is smaller than the sum of its proper divisors (25976481904).

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

22202121100 is a wasteful number, since it uses less digits than its factorization.

22202121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222021225 (or 222021218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22202121100 its reverse (112120222), we get a palindrome (22314241322).

The spelling of 22202121100 in words is "twenty-two billion, two hundred two million, one hundred twenty-one thousand, one hundred".