2100210100212 has 24 divisors (see below), whose sum is σ = 5600560267456. Its totient is φ = 600060028608.

The previous prime is 2100210100189. The next prime is 2100210100249. The reversal of 2100210100212 is 2120010120012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12501250513 + ... + 12501250680.

Almost surely, 2^{2100210100212} is an apocalyptic number.

It is an amenable number.

2100210100212 is an abundant number, since it is smaller than the sum of its proper divisors (3500350167244).

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

2100210100212 is a wasteful number, since it uses less digits than its factorization.

2100210100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25002501207 (or 25002501205 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2100210100212 its reverse (2120010120012), we get a palindrome (4220220220224).

The spelling of 2100210100212 in words is "two trillion, one hundred billion, two hundred ten million, one hundred thousand, two hundred twelve".