22641023501 has 2 divisors, whose sum is σ = 22641023502. Its totient is φ = 22641023500.

The previous prime is 22641023477. The next prime is 22641023527. The reversal of 22641023501 is 10532014622.

It is a happy number.

It is an a-pointer prime, because the next prime (22641023527) can be obtained adding 22641023501 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11887540900 + 10753482601 = 109030^2 + 103699^2 .

It is a cyclic number.

It is not a de Polignac number, because 22641023501 - 2⁶ = 22641023437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22641013501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11320511750 + 11320511751.

It is an arithmetic number, because the mean of its divisors is an integer number (11320511751).

Almost surely, 2^22641023501 is an apocalyptic number.

It is an amenable number.

22641023501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22641023501 is an equidigital number, since it uses as much as digits as its factorization.

22641023501 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 26.

The spelling of 22641023501 in words is "twenty-two billion, six hundred forty-one million, twenty-three thousand, five hundred one".