22202404523 has 4 divisors (see below), whose sum is σ = 23910281808. Its totient is φ = 20494527240.

The previous prime is 22202404463. The next prime is 22202404537. The reversal of 22202404523 is 32540420222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22202404523 - 2¹⁰ = 22202403499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202404492 and 22202404501.

It is not an unprimeable number, because it can be changed into a prime (22202404823) 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, 853938623 + ... + 853938648.

It is an arithmetic number, because the mean of its divisors is an integer number (5977570452).

Almost surely, 2^22202404523 is an apocalyptic number.

22202404523 is a deficient number, since it is larger than the sum of its proper divisors (1707877285).

22202404523 is a wasteful number, since it uses less digits than its factorization.

22202404523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707877284.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 22202404523 its reverse (32540420222), we get a palindrome (54742824745).

The spelling of 22202404523 in words is "twenty-two billion, two hundred two million, four hundred four thousand, five hundred twenty-three".