131210100021212 has 48 divisors (see below), whose sum is σ = 255858743347200. Its totient is φ = 58634295276480.

The previous prime is 131210100021211. The next prime is 131210100021277. The reversal of 131210100021212 is 212120001012131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131210100021211) 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, 793130162 + ... + 793295577.

It is an arithmetic number, because the mean of its divisors is an integer number (5330390486400).

Almost surely, 2^{131210100021212} is an apocalyptic number.

It is an amenable number.

131210100021212 is a deficient number, since it is larger than the sum of its proper divisors (124648643325988).

131210100021212 is a wasteful number, since it uses less digits than its factorization.

131210100021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586425826 (or 1586425824 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131210100021212 its reverse (212120001012131), we get a palindrome (343330101033343).

The spelling of 131210100021212 in words is "one hundred thirty-one trillion, two hundred ten billion, one hundred million, twenty-one thousand, two hundred twelve".