2131210101012 has 48 divisors (see below), whose sum is σ = 5033031249792. Its totient is φ = 701835039360.

The previous prime is 2131210100993. The next prime is 2131210101019. The reversal of 2131210101012 is 2101010121312.

It is a junction number, because it is equal to n+sod(n) for n = 2131210100982 and 2131210101000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131210101019) 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, 1527483 + ... + 2568194.

It is an arithmetic number, because the mean of its divisors is an integer number (104854817704).

Almost surely, 2^{2131210101012} is an apocalyptic number.

It is an amenable number.

2131210101012 is an abundant number, since it is smaller than the sum of its proper divisors (2901821148780).

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

2131210101012 is a wasteful number, since it uses less digits than its factorization.

2131210101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096208 (or 4096206 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2131210101012 its reverse (2101010121312), we get a palindrome (4232220222324).

The spelling of 2131210101012 in words is "two trillion, one hundred thirty-one billion, two hundred ten million, one hundred one thousand, twelve".