312111202201 has 16 divisors (see below), whose sum is σ = 329066726400. Its totient is φ = 295208918928.

The previous prime is 312111202153. The next prime is 312111202283. The reversal of 312111202201 is 102202111213.

It is a cyclic number.

It is not a de Polignac number, because 312111202201 - 2¹⁹ = 312110677913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312111202001) 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, 43593460 + ... + 43600618.

It is an arithmetic number, because the mean of its divisors is an integer number (20566670400).

Almost surely, 2^312111202201 is an apocalyptic number.

It is an amenable number.

312111202201 is a deficient number, since it is larger than the sum of its proper divisors (16955524199).

312111202201 is a wasteful number, since it uses less digits than its factorization.

312111202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10548.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 312111202201 its reverse (102202111213), we get a palindrome (414313313414).

The spelling of 312111202201 in words is "three hundred twelve billion, one hundred eleven million, two hundred two thousand, two hundred one".