222242140 has 24 divisors (see below), whose sum is σ = 478093392. Its totient is φ = 86728320.

The previous prime is 222242113. The next prime is 222242147. The reversal of 222242140 is 41242222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222242147) 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, 134694 + ... + 136333.

It is an arithmetic number, because the mean of its divisors is an integer number (19920558).

Almost surely, 2^222242140 is an apocalyptic number.

222242140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222242140 is an abundant number, since it is smaller than the sum of its proper divisors (255851252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222242140 is a wasteful number, since it uses less digits than its factorization.

222242140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271077 (or 271075 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 222242140 is about 14907.7878976057. The cubic root of 222242140 is about 605.7249602388.

Adding to 222242140 its reverse (41242222), we get a palindrome (263484362).

The spelling of 222242140 in words is "two hundred twenty-two million, two hundred forty-two thousand, one hundred forty".