22521242413 has 4 divisors (see below), whose sum is σ = 22656100320. Its totient is φ = 22386384508.

The previous prime is 22521242351. The next prime is 22521242423. The reversal of 22521242413 is 31424212522.

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 22521242413 - 2⁹ = 22521241901 is a prime.

It is a super-2 number, since 2×22521242413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22521242423) 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, 67428703 + ... + 67429036.

It is an arithmetic number, because the mean of its divisors is an integer number (5664025080).

Almost surely, 2^22521242413 is an apocalyptic number.

It is an amenable number.

22521242413 is a deficient number, since it is larger than the sum of its proper divisors (134857907).

22521242413 is a wasteful number, since it uses less digits than its factorization.

22521242413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134857906.

The product of its digits is 7680, while the sum is 28.

Adding to 22521242413 its reverse (31424212522), we get a palindrome (53945454935).

The spelling of 22521242413 in words is "twenty-two billion, five hundred twenty-one million, two hundred forty-two thousand, four hundred thirteen".