102101212202100 has 72 divisors (see below), whose sum is σ = 295568240942688. Its totient is φ = 27212667312000.

The previous prime is 102101212202039. The next prime is 102101212202111. The reversal of 102101212202100 is 1202212101201.

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 102101212202100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88945054 + ... + 90085653.

Almost surely, 2^{102101212202100} is an apocalyptic number.

102101212202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101212202100 is an abundant number, since it is smaller than the sum of its proper divisors (193467028740588).

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

102101212202100 is a wasteful number, since it uses less digits than its factorization.

102101212202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179032625 (or 179032618 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102101212202100 its reverse (1202212101201), we get a palindrome (103303424303301).

The spelling of 102101212202100 in words is "one hundred two trillion, one hundred one billion, two hundred twelve million, two hundred two thousand, one hundred".