222155242 has 8 divisors (see below), whose sum is σ = 334908000. Its totient is φ = 110519244.

The previous prime is 222155191. The next prime is 222155249. The reversal of 222155242 is 242551222.

222155242 is digitally balanced in base 3, 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 an unprimeable number, because it can be changed into a prime (222155249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278692 + ... + 279487.

It is an arithmetic number, because the mean of its divisors is an integer number (41863500).

Almost surely, 2^222155242 is an apocalyptic number.

222155242 is a deficient number, since it is larger than the sum of its proper divisors (112752758).

222155242 is a wasteful number, since it uses less digits than its factorization.

222155242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558380.

The product of its digits is 3200, while the sum is 25.

The square root of 222155242 is about 14904.8730957362. The cubic root of 222155242 is about 605.6460025916.

The spelling of 222155242 in words is "two hundred twenty-two million, one hundred fifty-five thousand, two hundred forty-two".