20100102200 has 24 divisors (see below), whose sum is σ = 46732738080. Its totient is φ = 8040040800.

The previous prime is 20100102199. The next prime is 20100102221. The reversal of 20100102200 is 220100102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50250056 + ... + 50250455.

It is an arithmetic number, because the mean of its divisors is an integer number (1947197420).

Almost surely, 2^20100102200 is an apocalyptic number.

20100102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100102200 is an abundant number, since it is smaller than the sum of its proper divisors (26632635880).

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

20100102200 is a wasteful number, since it uses less digits than its factorization.

20100102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100500527 (or 100500518 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20100102200 its reverse (220100102), we get a palindrome (20320202302).

The spelling of 20100102200 in words is "twenty billion, one hundred million, one hundred two thousand, two hundred".