20002190100 has 36 divisors (see below), whose sum is σ = 57873004224. Its totient is φ = 5333917280.

The previous prime is 20002190099. The next prime is 20002190107. The reversal of 20002190100 is 109120002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20002190100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002190107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33336684 + ... + 33337283.

Almost surely, 2^20002190100 is an apocalyptic number.

20002190100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002190100 is an abundant number, since it is smaller than the sum of its proper divisors (37870814124).

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

20002190100 is a wasteful number, since it uses less digits than its factorization.

20002190100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66673984 (or 66673977 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 20002190100 in words is "twenty billion, two million, one hundred ninety thousand, one hundred".