22101623 has 2 divisors, whose sum is σ = 22101624. Its totient is φ = 22101622.

The previous prime is 22101571. The next prime is 22101631. The reversal of 22101623 is 32610122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22101623 - 2⁶ = 22101559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050811 + 11050812.

It is an arithmetic number, because the mean of its divisors is an integer number (11050812).

Almost surely, 2^22101623 is an apocalyptic number.

22101623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101623 is an equidigital number, since it uses as much as digits as its factorization.

22101623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 22101623 is about 4701.2363267549. The cubic root of 22101623 is about 280.6347123389.

Adding to 22101623 its reverse (32610122), we get a palindrome (54711745).

The spelling of 22101623 in words is "twenty-two million, one hundred one thousand, six hundred twenty-three".