20001100208 has 20 divisors (see below), whose sum is σ = 38976137808. Its totient is φ = 9942742080.

The previous prime is 20001100199. The next prime is 20001100237. The reversal of 20001100208 is 80200110002.

It is a junction number, because it is equal to n+sod(n) for n = 20001100192 and 20001100201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3610148 + ... + 3615683.

Almost surely, 2^20001100208 is an apocalyptic number.

It is an amenable number.

20001100208 is a deficient number, since it is larger than the sum of its proper divisors (18975037600).

20001100208 is a wasteful number, since it uses less digits than its factorization.

20001100208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226012 (or 7226006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 20001100208 in words is "twenty billion, one million, one hundred thousand, two hundred eight".