2131212130122 has 32 divisors (see below), whose sum is σ = 4329686374272. Its totient is φ = 699233658624.

The previous prime is 2131212130097. The next prime is 2131212130217. The reversal of 2131212130122 is 2210312121312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4782363 + ... + 5208974.

It is an arithmetic number, because the mean of its divisors is an integer number (135302699196).

Almost surely, 2^{2131212130122} is an apocalyptic number.

2131212130122 is an abundant number, since it is smaller than the sum of its proper divisors (2198474244150).

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

2131212130122 is a wasteful number, since it uses less digits than its factorization.

2131212130122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991902.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2131212130122 its reverse (2210312121312), we get a palindrome (4341524251434).

The spelling of 2131212130122 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, one hundred thirty thousand, one hundred twenty-two".