221425535322 has 144 divisors (see below), whose sum is σ = 502270879968. Its totient is φ = 70456800960.

The previous prime is 221425535273. The next prime is 221425535363. The reversal of 221425535322 is 223535524122.

It is a happy number.

221425535322 is a `hidden beast` number, since 22 + 14 + 2 + 553 + 53 + 22 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 698503108 + ... + 698503424.

It is an arithmetic number, because the mean of its divisors is an integer number (3487992222).

Almost surely, 2^221425535322 is an apocalyptic number.

221425535322 is an abundant number, since it is smaller than the sum of its proper divisors (280845344646).

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

221425535322 is a wasteful number, since it uses less digits than its factorization.

221425535322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 579 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The spelling of 221425535322 in words is "two hundred twenty-one billion, four hundred twenty-five million, five hundred thirty-five thousand, three hundred twenty-two".