222159905 has 8 divisors (see below), whose sum is σ = 290827584. Its totient is φ = 161570800.

The previous prime is 222159881. The next prime is 222159907. The reversal of 222159905 is 509951222.

222159905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222159905 - 2¹⁴ = 222143521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222159907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2019581 + ... + 2019690.

It is an arithmetic number, because the mean of its divisors is an integer number (36353448).

Almost surely, 2^222159905 is an apocalyptic number.

It is an amenable number.

222159905 is a deficient number, since it is larger than the sum of its proper divisors (68667679).

222159905 is a wasteful number, since it uses less digits than its factorization.

222159905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039287.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 222159905 is about 14905.0295202660. The cubic root of 222159905 is about 605.6502400302.

It can be divided in two parts, 2221 and 59905, that added together give a palindrome (62126).

The spelling of 222159905 in words is "two hundred twenty-two million, one hundred fifty-nine thousand, nine hundred five".