312422213240 has 96 divisors (see below), whose sum is σ = 719067857760. Its totient is φ = 122155488000.

The previous prime is 312422213209. The next prime is 312422213249. The reversal of 312422213240 is 42312224213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312422213249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25207445 + ... + 25219835.

It is an arithmetic number, because the mean of its divisors is an integer number (7490290185).

Almost surely, 2^312422213240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312422213240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359533928880).

312422213240 is an abundant number, since it is smaller than the sum of its proper divisors (406645644520).

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

312422213240 is a wasteful number, since it uses less digits than its factorization.

312422213240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12661 (or 12578 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 312422213240 its reverse (42312224213), we get a palindrome (354734437453).

The spelling of 312422213240 in words is "three hundred twelve billion, four hundred twenty-two million, two hundred thirteen thousand, two hundred forty".