22402901 has 2 divisors, whose sum is σ = 22402902. Its totient is φ = 22402900.

The previous prime is 22402867. The next prime is 22402903. The reversal of 22402901 is 10920422.

22402901 is nontrivially palindromic in base 2.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20484676 + 1918225 = 4526^2 + 1385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22402901 is a prime.

Together with 22402903, 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 (22402903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11201450 + 11201451.

It is an arithmetic number, because the mean of its divisors is an integer number (11201451).

Almost surely, 2^22402901 is an apocalyptic number.

It is an amenable number.

22402901 is a deficient number, since it is larger than the sum of its proper divisors (1).

22402901 is an equidigital number, since it uses as much as digits as its factorization.

22402901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22402901 is about 4733.1702906192. The cubic root of 22402901 is about 281.9041179321.

The spelling of 22402901 in words is "twenty-two million, four hundred two thousand, nine hundred one".