201231333112212 has 144 divisors (see below), whose sum is σ = 566825980855680. Its totient is φ = 59767479072000.

The previous prime is 201231333112153. The next prime is 201231333112247. The reversal of 201231333112212 is 212211333132102.

201231333112212 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 3 + 1 + 333 + 112 + 212 = 666.

It is a super-2 number, since 2×201231333112212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53150137 + ... + 56810207.

It is an arithmetic number, because the mean of its divisors is an integer number (3936291533720).

Almost surely, 2^{201231333112212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201231333112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283412990427840).

201231333112212 is an abundant number, since it is smaller than the sum of its proper divisors (365594647743468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201231333112212 is a wasteful number, since it uses less digits than its factorization.

201231333112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664174 (or 3664169 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 201231333112212 its reverse (212211333132102), we get a palindrome (413442666244314).

The spelling of 201231333112212 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred thirty-three million, one hundred twelve thousand, two hundred twelve".