22143022501 has 4 divisors (see below), whose sum is σ = 22144048192. Its totient is φ = 22141996812.

The previous prime is 22143022487. The next prime is 22143022537. The reversal of 22143022501 is 10522034122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22143022501 - 2¹⁵ = 22142989733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143022571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479751 + ... + 523876.

It is an arithmetic number, because the mean of its divisors is an integer number (5536012048).

Almost surely, 2^22143022501 is an apocalyptic number.

It is an amenable number.

22143022501 is a deficient number, since it is larger than the sum of its proper divisors (1025691).

22143022501 is a wasteful number, since it uses less digits than its factorization.

22143022501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025690.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 22143022501 its reverse (10522034122), we get a palindrome (32665056623).

The spelling of 22143022501 in words is "twenty-two billion, one hundred forty-three million, twenty-two thousand, five hundred one".