220522508221 has 8 divisors (see below), whose sum is σ = 223682589504. Its totient is φ = 217366189920.

The previous prime is 220522508203. The next prime is 220522508237. The reversal of 220522508221 is 122805225022.

It is a happy number.

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

It is not a de Polignac number, because 220522508221 - 2¹⁷ = 220522377149 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 (220522508321) 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, 822595 + ... + 1057216.

It is an arithmetic number, because the mean of its divisors is an integer number (27960323688).

Almost surely, 2^220522508221 is an apocalyptic number.

It is an amenable number.

220522508221 is a deficient number, since it is larger than the sum of its proper divisors (3160081283).

220522508221 is a wasteful number, since it uses less digits than its factorization.

220522508221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881491.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 220522508221 in words is "two hundred twenty billion, five hundred twenty-two million, five hundred eight thousand, two hundred twenty-one".