31212113200222 has 16 divisors (see below), whose sum is σ = 46872855851040. Its totient is φ = 15587829347328.

The previous prime is 31212113200199. The next prime is 31212113200237. The reversal of 31212113200222 is 22200231121213.

It is a junction number, because it is equal to n+sod(n) for n = 31212113200193 and 31212113200202.

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, 44958154 + ... + 45647122.

It is an arithmetic number, because the mean of its divisors is an integer number (2929553490690).

Almost surely, 2^{31212113200222} is an apocalyptic number.

31212113200222 is a deficient number, since it is larger than the sum of its proper divisors (15660742650818).

31212113200222 is a wasteful number, since it uses less digits than its factorization.

31212113200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715395.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31212113200222 its reverse (22200231121213), we get a palindrome (53412344321435).

The spelling of 31212113200222 in words is "thirty-one trillion, two hundred twelve billion, one hundred thirteen million, two hundred thousand, two hundred twenty-two".