22621140521 has 16 divisors (see below), whose sum is σ = 26774102400. Its totient is φ = 19100133360.

The previous prime is 22621140449. The next prime is 22621140533. The reversal of 22621140521 is 12504112622.

It is a de Polignac number, because none of the positive numbers 2^k-22621140521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22621142521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469190 + ... + 515151.

It is an arithmetic number, because the mean of its divisors is an integer number (1673381400).

Almost surely, 2^22621140521 is an apocalyptic number.

It is an amenable number.

22621140521 is a deficient number, since it is larger than the sum of its proper divisors (4152961879).

22621140521 is an frugal number, since it uses more digits than its factorization.

22621140521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984429 (or 984415 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 22621140521 in words is "twenty-two billion, six hundred twenty-one million, one hundred forty thousand, five hundred twenty-one".