212331221302 has 16 divisors (see below), whose sum is σ = 323290848240. Its totient is φ = 104568000768.

The previous prime is 212331221299. The next prime is 212331221321. The reversal of 212331221302 is 203122133212.

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, 1026778 + ... + 1216114.

It is an arithmetic number, because the mean of its divisors is an integer number (20205678015).

Almost surely, 2^212331221302 is an apocalyptic number.

212331221302 is a deficient number, since it is larger than the sum of its proper divisors (110959626938).

212331221302 is a wasteful number, since it uses less digits than its factorization.

212331221302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197775.

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

Adding to 212331221302 its reverse (203122133212), we get a palindrome (415453354514).

The spelling of 212331221302 in words is "two hundred twelve billion, three hundred thirty-one million, two hundred twenty-one thousand, three hundred two".