22521023011 has 2 divisors, whose sum is σ = 22521023012. Its totient is φ = 22521023010.

The previous prime is 22521022991. The next prime is 22521023017. The reversal of 22521023011 is 11032012522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22521023011 - 2⁷ = 22521022883 is a prime.

It is a super-2 number, since 2×22521023011² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22521023011.

It is not a weakly prime, because it can be changed into another prime (22521023017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260511505 + 11260511506.

It is an arithmetic number, because the mean of its divisors is an integer number (11260511506).

Almost surely, 2^22521023011 is an apocalyptic number.

22521023011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22521023011 is an equidigital number, since it uses as much as digits as its factorization.

22521023011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 22521023011 its reverse (11032012522), we get a palindrome (33553035533).

The spelling of 22521023011 in words is "twenty-two billion, five hundred twenty-one million, twenty-three thousand, eleven".