242515222 has 4 divisors (see below), whose sum is σ = 363772836. Its totient is φ = 121257610.

The previous prime is 242515213. The next prime is 242515237. The reversal of 242515222 is 222515242.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60628804 + ... + 60628807.

It is an arithmetic number, because the mean of its divisors is an integer number (90943209).

Almost surely, 2^242515222 is an apocalyptic number.

242515222 is a deficient number, since it is larger than the sum of its proper divisors (121257614).

242515222 is a wasteful number, since it uses less digits than its factorization.

242515222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121257613.

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

The square root of 242515222 is about 15572.9002436926. The cubic root of 242515222 is about 623.6098999271.

The spelling of 242515222 in words is "two hundred forty-two million, five hundred fifteen thousand, two hundred twenty-two".