331201222100212 has 6 divisors (see below), whose sum is σ = 579602138675378. Its totient is φ = 165600611050104.

The previous prime is 331201222100209. The next prime is 331201222100267. The reversal of 331201222100212 is 212001222102133.

It can be written as a sum of positive squares in only one way, i.e., 250398849408016 + 80802372692196 = 15823996^2 + 8989014^2 .

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, 41400152762523 + ... + 41400152762530.

Almost surely, 2^{331201222100212} is an apocalyptic number.

It is an amenable number.

331201222100212 is a deficient number, since it is larger than the sum of its proper divisors (248400916575166).

331201222100212 is a wasteful number, since it uses less digits than its factorization.

331201222100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82800305525057 (or 82800305525055 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 331201222100212 its reverse (212001222102133), we get a palindrome (543202444202345).

The spelling of 331201222100212 in words is "three hundred thirty-one trillion, two hundred one billion, two hundred twenty-two million, one hundred thousand, two hundred twelve".