22231379 has 2 divisors, whose sum is σ = 22231380. Its totient is φ = 22231378.

The previous prime is 22231373. The next prime is 22231403. The reversal of 22231379 is 97313222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22231379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22231373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11115689 + 11115690.

It is an arithmetic number, because the mean of its divisors is an integer number (11115690).

Almost surely, 2^22231379 is an apocalyptic number.

22231379 is a deficient number, since it is larger than the sum of its proper divisors (1).

22231379 is an equidigital number, since it uses as much as digits as its factorization.

22231379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 22231379 is about 4715.0163308307. The cubic root of 22231379 is about 281.1828320920.

The spelling of 22231379 in words is "twenty-two million, two hundred thirty-one thousand, three hundred seventy-nine".