222250139 has 2 divisors, whose sum is σ = 222250140. Its totient is φ = 222250138.

The previous prime is 222250123. The next prime is 222250141. The reversal of 222250139 is 931052222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222250139 - 2⁴ = 222250123 is a prime.

Together with 222250141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222258139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111125069 + 111125070.

It is an arithmetic number, because the mean of its divisors is an integer number (111125070).

Almost surely, 2^222250139 is an apocalyptic number.

222250139 is a deficient number, since it is larger than the sum of its proper divisors (1).

222250139 is an equidigital number, since it uses as much as digits as its factorization.

222250139 is an evil number, because the sum of its binary digits is even.

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

The square root of 222250139 is about 14908.0561777852. The cubic root of 222250139 is about 605.7322272912.

The spelling of 222250139 in words is "two hundred twenty-two million, two hundred fifty thousand, one hundred thirty-nine".