222721475 has 12 divisors (see below), whose sum is σ = 278032800. Its totient is φ = 176978400.

The previous prime is 222721469. The next prime is 222721483. The reversal of 222721475 is 574127222.

It is not a de Polignac number, because 222721475 - 2⁴ = 222721459 is a prime.

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, 26171 + ... + 33620.

It is an arithmetic number, because the mean of its divisors is an integer number (23169400).

Almost surely, 2^222721475 is an apocalyptic number.

222721475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

222721475 is a deficient number, since it is larger than the sum of its proper divisors (55311325).

222721475 is a wasteful number, since it uses less digits than its factorization.

222721475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59950 (or 59945 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 222721475 is about 14923.8559025474. The cubic root of 222721475 is about 606.1601262600.

Adding to 222721475 its reverse (574127222), we get a palindrome (796848697).

The spelling of 222721475 in words is "two hundred twenty-two million, seven hundred twenty-one thousand, four hundred seventy-five".