221674122 has 24 divisors (see below), whose sum is σ = 488170020. Its totient is φ = 72679680.

The previous prime is 221674097. The next prime is 221674129. The reversal of 221674122 is 221476122.

It can be written as a sum of positive squares in 2 ways, for example, as 214593201 + 7080921 = 14649^2 + 2661^2 .

It is not an unprimeable number, because it can be changed into a prime (221674129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99847 + ... + 102042.

Almost surely, 2^221674122 is an apocalyptic number.

221674122 is an abundant number, since it is smaller than the sum of its proper divisors (266495898).

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

221674122 is a wasteful number, since it uses less digits than its factorization.

221674122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201958 (or 201955 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 221674122 is about 14888.7246599566. The cubic root of 221674122 is about 605.2084721989.

The spelling of 221674122 in words is "two hundred twenty-one million, six hundred seventy-four thousand, one hundred twenty-two".