221822250696 has 48 divisors (see below), whose sum is σ = 636107928300. Its totient is φ = 69591293952.

The previous prime is 221822250623. The next prime is 221822250701. The reversal of 221822250696 is 696052228122.

It is a happy number.

221822250696 is a `hidden beast` number, since 22 + 18 + 2 + 22 + 506 + 96 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 220604938596 + 1217312100 = 469686^2 + 34890^2 .

It is a super-2 number, since 2×221822250696² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90612441 + ... + 90614888.

Almost surely, 2^221822250696 is an apocalyptic number.

It is an amenable number.

221822250696 is an abundant number, since it is smaller than the sum of its proper divisors (414285677604).

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

221822250696 is a wasteful number, since it uses less digits than its factorization.

221822250696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181227358 (or 181227351 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 221822250696 in words is "two hundred twenty-one billion, eight hundred twenty-two million, two hundred fifty thousand, six hundred ninety-six".