312022022201 has 4 divisors (see below), whose sum is σ = 313605890532. Its totient is φ = 310438153872.

The previous prime is 312022022197. The next prime is 312022022203. The reversal of 312022022201 is 102220220213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102220220213 = 28607 ⋅3573259.

It can be written as a sum of positive squares in 2 ways, for example, as 292372711225 + 19649310976 = 540715^2 + 140176^2 .

It is a cyclic number.

It is not a de Polignac number, because 312022022201 - 2² = 312022022197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312022022201.

It is not an unprimeable number, because it can be changed into a prime (312022022203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791933870 + ... + 791934263.

It is an arithmetic number, because the mean of its divisors is an integer number (78401472633).

Almost surely, 2^312022022201 is an apocalyptic number.

It is an amenable number.

312022022201 is a deficient number, since it is larger than the sum of its proper divisors (1583868331).

312022022201 is a wasteful number, since it uses less digits than its factorization.

312022022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583868330.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 312022022201 its reverse (102220220213), we get a palindrome (414242242414).

The spelling of 312022022201 in words is "three hundred twelve billion, twenty-two million, twenty-two thousand, two hundred one".