221270798322 has 162 divisors, whose sum is σ = 571506844077. Its totient is φ = 61691511168.

The previous prime is 221270798311. The next prime is 221270798383. The reversal of 221270798322 is 223897072122.

It can be written as a sum of positive squares in 2 ways, for example, as 208831634361 + 12439163961 = 456981^2 + 111531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332619.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 656589738 + ... + 656590074.

Almost surely, 2^221270798322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221270798322

221270798322 is an abundant number, since it is smaller than the sum of its proper divisors (350236045755).

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

221270798322 is an equidigital number, since it uses as much as digits as its factorization.

221270798322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 221270798322 in words is "two hundred twenty-one billion, two hundred seventy million, seven hundred ninety-eight thousand, three hundred twenty-two".