312032211222 has 32 divisors (see below), whose sum is σ = 642833055072. Its totient is φ = 100899316224.

The previous prime is 312032211119. The next prime is 312032211223. The reversal of 312032211222 is 222112230213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312032211223) 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, 2010573 + ... + 2160200.

It is an arithmetic number, because the mean of its divisors is an integer number (20088532971).

Almost surely, 2^312032211222 is an apocalyptic number.

312032211222 is an abundant number, since it is smaller than the sum of its proper divisors (330800843850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312032211222 is a wasteful number, since it uses less digits than its factorization.

312032211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171152.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 312032211222 its reverse (222112230213), we get a palindrome (534144441435).

The spelling of 312032211222 in words is "three hundred twelve billion, thirty-two million, two hundred eleven thousand, two hundred twenty-two".