22626120021 has 4 divisors (see below), whose sum is σ = 30168160032. Its totient is φ = 15084080012.

The previous prime is 22626120019. The next prime is 22626120043. The reversal of 22626120021 is 12002162622.

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 22626120021 - 2¹ = 22626120019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22626119973 and 22626120000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22626120821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3771020001 + ... + 3771020006.

It is an arithmetic number, because the mean of its divisors is an integer number (7542040008).

Almost surely, 2^22626120021 is an apocalyptic number.

It is an amenable number.

22626120021 is a deficient number, since it is larger than the sum of its proper divisors (7542040011).

22626120021 is an equidigital number, since it uses as much as digits as its factorization.

22626120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542040010.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 22626120021 its reverse (12002162622), we get a palindrome (34628282643).

The spelling of 22626120021 in words is "twenty-two billion, six hundred twenty-six million, one hundred twenty thousand, twenty-one".