222038279 has 2 divisors, whose sum is σ = 222038280. Its totient is φ = 222038278.

The previous prime is 222038273. The next prime is 222038381. The reversal of 222038279 is 972830222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222038279 - 2⁴ = 222038263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222038273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111019139 + 111019140.

It is an arithmetic number, because the mean of its divisors is an integer number (111019140).

Almost surely, 2^222038279 is an apocalyptic number.

222038279 is a deficient number, since it is larger than the sum of its proper divisors (1).

222038279 is an equidigital number, since it uses as much as digits as its factorization.

222038279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 222038279 is about 14900.9489295145. The cubic root of 222038279 is about 605.5396946358.

The spelling of 222038279 in words is "two hundred twenty-two million, thirty-eight thousand, two hundred seventy-nine".