212312221210 has 32 divisors (see below), whose sum is σ = 384753411072. Its totient is φ = 84350387520.

The previous prime is 212312221181. The next prime is 212312221211. The reversal of 212312221210 is 12122213212.

It is not an unprimeable number, because it can be changed into a prime (212312221211) 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, 1162117 + ... + 1332343.

It is an arithmetic number, because the mean of its divisors is an integer number (12023544096).

Almost surely, 2^212312221210 is an apocalyptic number.

212312221210 is a deficient number, since it is larger than the sum of its proper divisors (172441189862).

212312221210 is a wasteful number, since it uses less digits than its factorization.

212312221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171078.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212312221210 its reverse (12122213212), we get a palindrome (224434434422).

The spelling of 212312221210 in words is "two hundred twelve billion, three hundred twelve million, two hundred twenty-one thousand, two hundred ten".