22202216501 has 4 divisors (see below), whose sum is σ = 22214712492. Its totient is φ = 22189720512.

The previous prime is 22202216479. The next prime is 22202216513. The reversal of 22202216501 is 10561220222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7664127025 + 14538089476 = 87545^2 + 120574^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202216501 - 2⁶ = 22202216437 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 (22202215501) 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, 6245330 + ... + 6248883.

It is an arithmetic number, because the mean of its divisors is an integer number (5553678123).

Almost surely, 2^22202216501 is an apocalyptic number.

It is an amenable number.

22202216501 is a deficient number, since it is larger than the sum of its proper divisors (12495991).

22202216501 is a wasteful number, since it uses less digits than its factorization.

22202216501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12495990.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 22202216501 its reverse (10561220222), we get a palindrome (32763436723).

The spelling of 22202216501 in words is "twenty-two billion, two hundred two million, two hundred sixteen thousand, five hundred one".