312403222221040 has 40 divisors (see below), whose sum is σ = 726348432475008. Its totient is φ = 124959406598400.

The previous prime is 312403222221019. The next prime is 312403222221053. The reversal of 312403222221040 is 40122222304213.

It is a tau number, because it is divible by the number of its divisors (40).

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, 24060511 + ... + 34694590.

Almost surely, 2^{312403222221040} is an apocalyptic number.

It is an amenable number.

312403222221040 is an abundant number, since it is smaller than the sum of its proper divisors (413945210253968).

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

312403222221040 is a wasteful number, since it uses less digits than its factorization.

312403222221040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58821577 (or 58821571 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 312403222221040 its reverse (40122222304213), we get a palindrome (352525444525253).

The spelling of 312403222221040 in words is "three hundred twelve trillion, four hundred three billion, two hundred twenty-two million, two hundred twenty-one thousand, forty".