2131313220212 has 24 divisors (see below), whose sum is σ = 4069239612480. Its totient is φ = 968690898560.

The previous prime is 2131313220199. The next prime is 2131313220229. The reversal of 2131313220212 is 2120223131312.

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, 1703912 + ... + 2676927.

It is an arithmetic number, because the mean of its divisors is an integer number (169551650520).

Almost surely, 2^{2131313220212} is an apocalyptic number.

2131313220212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131313220212 is a deficient number, since it is larger than the sum of its proper divisors (1937926392268).

2131313220212 is a wasteful number, since it uses less digits than its factorization.

2131313220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391911 (or 4391909 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2131313220212 its reverse (2120223131312), we get a palindrome (4251536351524).

It can be divided in two parts, 213131 and 3220212, that added together give a palindrome (3433343).

The spelling of 2131313220212 in words is "two trillion, one hundred thirty-one billion, three hundred thirteen million, two hundred twenty thousand, two hundred twelve".