222330155 has 4 divisors (see below), whose sum is σ = 266796192. Its totient is φ = 177864120.

The previous prime is 222330149. The next prime is 222330161. The reversal of 222330155 is 551033222.

222330155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (222330149) and next prime (222330161).

It is not a de Polignac number, because 222330155 - 2⁶ = 222330091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222330155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22233011 + ... + 22233020.

It is an arithmetic number, because the mean of its divisors is an integer number (66699048).

Almost surely, 2^222330155 is an apocalyptic number.

222330155 is a deficient number, since it is larger than the sum of its proper divisors (44466037).

222330155 is an equidigital number, since it uses as much as digits as its factorization.

222330155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44466036.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 222330155 is about 14910.7395859495. The cubic root of 222330155 is about 605.8049118418.

Adding to 222330155 its reverse (551033222), we get a palindrome (773363377).

The spelling of 222330155 in words is "two hundred twenty-two million, three hundred thirty thousand, one hundred fifty-five".