212202311031 has 16 divisors (see below), whose sum is σ = 314501015520. Its totient is φ = 141410957760.

The previous prime is 212202310979. The next prime is 212202311033. The reversal of 212202311031 is 130113202212.

It is not a de Polignac number, because 212202311031 - 2²¹ = 212200213879 is a prime.

It is a super-2 number, since 2×212202311031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212202310995 and 212202311013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202311033) 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, 1522260 + ... + 1655801.

It is an arithmetic number, because the mean of its divisors is an integer number (19656313470).

Almost surely, 2^212202311031 is an apocalyptic number.

212202311031 is a deficient number, since it is larger than the sum of its proper divisors (102298704489).

212202311031 is a wasteful number, since it uses less digits than its factorization.

212202311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180543 (or 3180537 counting only the distinct ones).

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

Adding to 212202311031 its reverse (130113202212), we get a palindrome (342315513243).

The spelling of 212202311031 in words is "two hundred twelve billion, two hundred two million, three hundred eleven thousand, thirty-one".