252223304021 has 8 divisors (see below), whose sum is σ = 271633330584. Its totient is φ = 232814453760.

The previous prime is 252223303993. The next prime is 252223304033. The reversal of 252223304021 is 120403322252.

It can be written as a sum of positive squares in 4 ways, for example, as 62519501521 + 189703802500 = 250039^2 + 435550^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252223304021 - 2⁶ = 252223303957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252223304071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179525 + ... + 732581.

It is an arithmetic number, because the mean of its divisors is an integer number (33954166323).

Almost surely, 2^252223304021 is an apocalyptic number.

It is an amenable number.

252223304021 is a deficient number, since it is larger than the sum of its proper divisors (19410026563).

252223304021 is a wasteful number, since it uses less digits than its factorization.

252223304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588151.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 252223304021 its reverse (120403322252), we get a palindrome (372626626273).

The spelling of 252223304021 in words is "two hundred fifty-two billion, two hundred twenty-three million, three hundred four thousand, twenty-one".