220331313212 has 6 divisors (see below), whose sum is σ = 385579798128. Its totient is φ = 110165656604.

The previous prime is 220331313203. The next prime is 220331313259. The reversal of 220331313212 is 212313133022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27541414148 + ... + 27541414155.

It is an arithmetic number, because the mean of its divisors is an integer number (64263299688).

Almost surely, 2^220331313212 is an apocalyptic number.

It is an amenable number.

220331313212 is a deficient number, since it is larger than the sum of its proper divisors (165248484916).

220331313212 is a wasteful number, since it uses less digits than its factorization.

220331313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55082828307 (or 55082828305 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 220331313212 its reverse (212313133022), we get a palindrome (432644446234).

The spelling of 220331313212 in words is "two hundred twenty billion, three hundred thirty-one million, three hundred thirteen thousand, two hundred twelve".