222052139 has 8 divisors (see below), whose sum is σ = 229954032. Its totient is φ = 214287840.

The previous prime is 222052123. The next prime is 222052157. The reversal of 222052139 is 931250222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222052139 - 2⁴ = 222052123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222057139) 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 7 ways as a sum of consecutive naturals, for example, 31109 + ... + 37574.

It is an arithmetic number, because the mean of its divisors is an integer number (28744254).

Almost surely, 2^222052139 is an apocalyptic number.

222052139 is a deficient number, since it is larger than the sum of its proper divisors (7901893).

222052139 is an equidigital number, since it uses as much as digits as its factorization.

222052139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68797.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 222052139 is about 14901.4139933095. The cubic root of 222052139 is about 605.5522939731.

The spelling of 222052139 in words is "two hundred twenty-two million, fifty-two thousand, one hundred thirty-nine".