312201112332122 has 16 divisors (see below), whose sum is σ = 504384479946312. Its totient is φ = 144075790739520.

The previous prime is 312201112332091. The next prime is 312201112332133. The reversal of 312201112332122 is 221233211102213.

It can be written as a sum of positive squares in 4 ways, for example, as 225708526912801 + 86492585419321 = 15023599^2 + 9300139^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 312201112332091 and 312201112332100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709373153 + ... + 709813124.

Almost surely, 2^{312201112332122} is an apocalyptic number.

312201112332122 is a deficient number, since it is larger than the sum of its proper divisors (192183367614190).

312201112332122 is a wasteful number, since it uses less digits than its factorization.

312201112332122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419194753.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 312201112332122 its reverse (221233211102213), we get a palindrome (533434323434335).

The spelling of 312201112332122 in words is "three hundred twelve trillion, two hundred one billion, one hundred twelve million, three hundred thirty-two thousand, one hundred twenty-two".