222231405 has 64 divisors (see below), whose sum is σ = 418037760. Its totient is φ = 99686400.

The previous prime is 222231397. The next prime is 222231433. The reversal of 222231405 is 504132222.

It is not a de Polignac number, because 222231405 - 2³ = 222231397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 116701 + ... + 118589.

It is an arithmetic number, because the mean of its divisors is an integer number (6531840).

Almost surely, 2^222231405 is an apocalyptic number.

It is an amenable number.

222231405 is a deficient number, since it is larger than the sum of its proper divisors (195806355).

222231405 is a wasteful number, since it uses less digits than its factorization.

222231405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 222231405 is about 14907.4278465468. The cubic root of 222231405 is about 605.7152072698.

Adding to 222231405 its reverse (504132222), we get a palindrome (726363627).

The spelling of 222231405 in words is "two hundred twenty-two million, two hundred thirty-one thousand, four hundred five".