222330157 has 4 divisors (see below), whose sum is σ = 254091616. Its totient is φ = 190568700.

The previous prime is 222330149. The next prime is 222330161. The reversal of 222330157 is 751033222.

222330157 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 222330157 - 2³ = 222330149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222330557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15880719 + ... + 15880732.

It is an arithmetic number, because the mean of its divisors is an integer number (63522904).

Almost surely, 2^222330157 is an apocalyptic number.

It is an amenable number.

222330157 is a deficient number, since it is larger than the sum of its proper divisors (31761459).

222330157 is an equidigital number, since it uses as much as digits as its factorization.

222330157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31761458.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 222330157 is about 14910.7396530152. The cubic root of 222330157 is about 605.8049136584.

Adding to 222330157 its reverse (751033222), we get a palindrome (973363379).

The spelling of 222330157 in words is "two hundred twenty-two million, three hundred thirty thousand, one hundred fifty-seven".