322220252 has 6 divisors (see below), whose sum is σ = 563885448. Its totient is φ = 161110124.

The previous prime is 322220243. The next prime is 322220287. The reversal of 322220252 is 252022223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40277528 + ... + 40277535.

It is an arithmetic number, because the mean of its divisors is an integer number (93980908).

Almost surely, 2^322220252 is an apocalyptic number.

It is an amenable number.

322220252 is a deficient number, since it is larger than the sum of its proper divisors (241665196).

322220252 is a wasteful number, since it uses less digits than its factorization.

322220252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80555067 (or 80555065 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 322220252 is about 17950.4944778688. The cubic root of 322220252 is about 685.5686414304.

Adding to 322220252 its reverse (252022223), we get a palindrome (574242475).

The spelling of 322220252 in words is "three hundred twenty-two million, two hundred twenty thousand, two hundred fifty-two".