212232310231 has 16 divisors (see below), whose sum is σ = 226715452416. Its totient is φ = 197974457856.

The previous prime is 212232310189. The next prime is 212232310237. The reversal of 212232310231 is 132013232212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212232310231 is a prime.

It is a super-2 number, since 2×212232310231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212232310237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103225 + ... + 2201821.

It is an arithmetic number, because the mean of its divisors is an integer number (14169715776).

Almost surely, 2^212232310231 is an apocalyptic number.

212232310231 is a deficient number, since it is larger than the sum of its proper divisors (14483142185).

212232310231 is a wasteful number, since it uses less digits than its factorization.

212232310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99738.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212232310231 its reverse (132013232212), we get a palindrome (344245542443).

The spelling of 212232310231 in words is "two hundred twelve billion, two hundred thirty-two million, three hundred ten thousand, two hundred thirty-one".