222530151 has 4 divisors (see below), whose sum is σ = 296706872. Its totient is φ = 148353432.

The previous prime is 222530131. The next prime is 222530177. The reversal of 222530151 is 151035222.

222530151 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 not a de Polignac number, because 222530151 - 2⁷ = 222530023 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 (222530111) 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, 37088356 + ... + 37088361.

It is an arithmetic number, because the mean of its divisors is an integer number (74176718).

Almost surely, 2^222530151 is an apocalyptic number.

222530151 is a deficient number, since it is larger than the sum of its proper divisors (74176721).

222530151 is an equidigital number, since it uses as much as digits as its factorization.

222530151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74176720.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 222530151 is about 14917.4445197561. Note that the first 3 decimals coincide. The cubic root of 222530151 is about 605.9865070137.

Adding to 222530151 its reverse (151035222), we get a palindrome (373565373).

The spelling of 222530151 in words is "two hundred twenty-two million, five hundred thirty thousand, one hundred fifty-one".