312021422442 has 48 divisors (see below), whose sum is σ = 677173667040. Its totient is φ = 103833842976.

The previous prime is 312021422441. The next prime is 312021422509. The reversal of 312021422442 is 244224120213.

It is a happy number.

312021422442 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 214 + 2 + 2 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (312021422441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49343893 + ... + 49350215.

It is an arithmetic number, because the mean of its divisors is an integer number (14107784730).

Almost surely, 2^312021422442 is an apocalyptic number.

312021422442 is an abundant number, since it is smaller than the sum of its proper divisors (365152244598).

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

312021422442 is a wasteful number, since it uses less digits than its factorization.

312021422442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10467 (or 10464 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 312021422442 its reverse (244224120213), we get a palindrome (556245542655).

The spelling of 312021422442 in words is "three hundred twelve billion, twenty-one million, four hundred twenty-two thousand, four hundred forty-two".