102021202100 has 36 divisors (see below), whose sum is σ = 222852174048. Its totient is φ = 40538220000.

The previous prime is 102021202093. The next prime is 102021202121. The reversal of 102021202100 is 1202120201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3363086 + ... + 3393285.

It is an arithmetic number, because the mean of its divisors is an integer number (6190338168).

Almost surely, 2^102021202100 is an apocalyptic number.

102021202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021202100 is an abundant number, since it is smaller than the sum of its proper divisors (120830971948).

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

102021202100 is a wasteful number, since it uses less digits than its factorization.

102021202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756536 (or 6756529 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102021202100 its reverse (1202120201), we get a palindrome (103223322301).

The spelling of 102021202100 in words is "one hundred two billion, twenty-one million, two hundred two thousand, one hundred".