22401371 has 2 divisors, whose sum is σ = 22401372. Its totient is φ = 22401370.

The previous prime is 22401349. The next prime is 22401377. The reversal of 22401371 is 17310422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22401371 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22401377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11200685 + 11200686.

It is an arithmetic number, because the mean of its divisors is an integer number (11200686).

Almost surely, 2^22401371 is an apocalyptic number.

22401371 is a deficient number, since it is larger than the sum of its proper divisors (1).

22401371 is an equidigital number, since it uses as much as digits as its factorization.

22401371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 22401371 is about 4733.0086625739. The cubic root of 22401371 is about 281.8977002644.

Adding to 22401371 its reverse (17310422), we get a palindrome (39711793).

The spelling of 22401371 in words is "twenty-two million, four hundred one thousand, three hundred seventy-one".