252221505523322 has 16 divisors (see below), whose sum is σ = 382395869017512. Its totient is φ = 124757326586880.

The previous prime is 252221505523313. The next prime is 252221505523333. The reversal of 252221505523322 is 223325505122252.

It can be written as a sum of positive squares in 4 ways, for example, as 142341864965521 + 109879640557801 = 11930711^2 + 10482349^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252221505523322.

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, 277228643 + ... + 278136950.

Almost surely, 2^{252221505523322} is an apocalyptic number.

252221505523322 is a deficient number, since it is larger than the sum of its proper divisors (130174363494190).

252221505523322 is a wasteful number, since it uses less digits than its factorization.

252221505523322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555368033.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 252221505523322 in words is "two hundred fifty-two trillion, two hundred twenty-one billion, five hundred five million, five hundred twenty-three thousand, three hundred twenty-two".