212202131031 has 24 divisors (see below), whose sum is σ = 334434980880. Its totient is φ = 128585865600.

The previous prime is 212202131021. The next prime is 212202131059. The reversal of 212202131031 is 130131202212.

It is not a de Polignac number, because 212202131031 - 2⁹ = 212202130519 is a prime.

It is a super-2 number, since 2×212202131031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212202130995 and 212202131013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202131021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426801 + ... + 778821.

It is an arithmetic number, because the mean of its divisors is an integer number (13934790870).

Almost surely, 2^212202131031 is an apocalyptic number.

212202131031 is a deficient number, since it is larger than the sum of its proper divisors (122232849849).

212202131031 is a wasteful number, since it uses less digits than its factorization.

212202131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358127 (or 358124 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212202131031 its reverse (130131202212), we get a palindrome (342333333243).

The spelling of 212202131031 in words is "two hundred twelve billion, two hundred two million, one hundred thirty-one thousand, thirty-one".