20221200108 has 18 divisors (see below), whose sum is σ = 51114700364. Its totient is φ = 6740400024.

The previous prime is 20221200107. The next prime is 20221200143. The reversal of 20221200108 is 80100212202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20221200101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280849966 + ... + 280850037.

Almost surely, 2^20221200108 is an apocalyptic number.

It is an amenable number.

20221200108 is an abundant number, since it is smaller than the sum of its proper divisors (30893500256).

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

20221200108 is a wasteful number, since it uses less digits than its factorization.

20221200108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561700013 (or 561700008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 20221200108 in words is "twenty billion, two hundred twenty-one million, two hundred thousand, one hundred eight".