2101002100212 has 48 divisors (see below), whose sum is σ = 5191163595072. Its totient is φ = 659080450560.

The previous prime is 2101002100159. The next prime is 2101002100213. The reversal of 2101002100212 is 2120012001012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101002100213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1927563 + ... + 2813805.

It is an arithmetic number, because the mean of its divisors is an integer number (108149241564).

Almost surely, 2^{2101002100212} is an apocalyptic number.

It is an amenable number.

2101002100212 is an abundant number, since it is smaller than the sum of its proper divisors (3090161494860).

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

2101002100212 is a wasteful number, since it uses less digits than its factorization.

2101002100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897888 (or 897886 counting only the distinct ones).

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

Adding to 2101002100212 its reverse (2120012001012), we get a palindrome (4221014101224).

The spelling of 2101002100212 in words is "two trillion, one hundred one billion, two million, one hundred thousand, two hundred twelve".