222908501 has 2 divisors, whose sum is σ = 222908502. Its totient is φ = 222908500.

The previous prime is 222908489. The next prime is 222908503. The reversal of 222908501 is 105809222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162052900 + 60855601 = 12730^2 + 7801^2 .

It is a cyclic number.

It is not a de Polignac number, because 222908501 - 2¹⁸ = 222646357 is a prime.

Together with 222908503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222908503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111454250 + 111454251.

It is an arithmetic number, because the mean of its divisors is an integer number (111454251).

Almost surely, 2^222908501 is an apocalyptic number.

It is an amenable number.

222908501 is a deficient number, since it is larger than the sum of its proper divisors (1).

222908501 is an equidigital number, since it uses as much as digits as its factorization.

222908501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 222908501 is about 14930.1205956282. The cubic root of 222908501 is about 606.3297491575.

The spelling of 222908501 in words is "two hundred twenty-two million, nine hundred eight thousand, five hundred one".