312231211022 has 16 divisors (see below), whose sum is σ = 479310920880. Its totient is φ = 152461999872.

The previous prime is 312231211003. The next prime is 312231211057. The reversal of 312231211022 is 220112132213.

It is a junction number, because it is equal to n+sod(n) for n = 312231210985 and 312231211003.

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, 306398 + ... + 847550.

It is an arithmetic number, because the mean of its divisors is an integer number (29956932555).

Almost surely, 2^312231211022 is an apocalyptic number.

312231211022 is a deficient number, since it is larger than the sum of its proper divisors (167079709858).

312231211022 is a wasteful number, since it uses less digits than its factorization.

312231211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547907.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 312231211022 its reverse (220112132213), we get a palindrome (532343343235).

The spelling of 312231211022 in words is "three hundred twelve billion, two hundred thirty-one million, two hundred eleven thousand, twenty-two".