222420475 has 12 divisors (see below), whose sum is σ = 276522480. Its totient is φ = 177471200.

The previous prime is 222420463. The next prime is 222420481. The reversal of 222420475 is 574024222.

It is not a de Polignac number, because 222420475 - 2¹⁹ = 221896187 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, 1711 + ... + 21160.

It is an arithmetic number, because the mean of its divisors is an integer number (23043540).

Almost surely, 2^222420475 is an apocalyptic number.

222420475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

222420475 is a deficient number, since it is larger than the sum of its proper divisors (54102005).

222420475 is a wasteful number, since it uses less digits than its factorization.

222420475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23270 (or 23265 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 222420475 is about 14913.7679678879. The cubic root of 222420475 is about 605.8869353412.

Adding to 222420475 its reverse (574024222), we get a palindrome (796444697).

The spelling of 222420475 in words is "two hundred twenty-two million, four hundred twenty thousand, four hundred seventy-five".