20122868208 has 20 divisors (see below), whose sum is σ = 51984076328. Its totient is φ = 6707622720.

The previous prime is 20122868147. The next prime is 20122868231. The reversal of 20122868208 is 80286822102.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 209613163 + ... + 209613258.

Almost surely, 2^20122868208 is an apocalyptic number.

It is an amenable number.

20122868208 is an abundant number, since it is smaller than the sum of its proper divisors (31861208120).

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

20122868208 is a wasteful number, since it uses less digits than its factorization.

20122868208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419226432 (or 419226426 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 20122868208 in words is "twenty billion, one hundred twenty-two million, eight hundred sixty-eight thousand, two hundred eight".