312212244221222 has 16 divisors (see below), whose sum is σ = 468607361225472. Its totient is φ = 156009812350080.

The previous prime is 312212244221191. The next prime is 312212244221243. The reversal of 312212244221222 is 222122442212213.

It is a congruent number.

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, 23110523 + ... + 34037049.

It is an arithmetic number, because the mean of its divisors is an integer number (29287960076592).

Almost surely, 2^{312212244221222} is an apocalyptic number.

312212244221222 is a deficient number, since it is larger than the sum of its proper divisors (156395117004250).

312212244221222 is a wasteful number, since it uses less digits than its factorization.

312212244221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10935343.

The product of its digits is 24576, while the sum is 32.

Adding to 312212244221222 its reverse (222122442212213), we get a palindrome (534334686433435).

The spelling of 312212244221222 in words is "three hundred twelve trillion, two hundred twelve billion, two hundred forty-four million, two hundred twenty-one thousand, two hundred twenty-two".