22261316521 has 8 divisors (see below), whose sum is σ = 23303422080. Its totient is φ = 21225396192.

The previous prime is 22261316501. The next prime is 22261316531. The reversal of 22261316521 is 12561316222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22261316521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22261316501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1538941 + ... + 1553338.

It is an arithmetic number, because the mean of its divisors is an integer number (2912927760).

Almost surely, 2^22261316521 is an apocalyptic number.

It is an amenable number.

22261316521 is a deficient number, since it is larger than the sum of its proper divisors (1042105559).

22261316521 is a wasteful number, since it uses less digits than its factorization.

22261316521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092615.

The product of its digits is 8640, while the sum is 31.

The spelling of 22261316521 in words is "twenty-two billion, two hundred sixty-one million, three hundred sixteen thousand, five hundred twenty-one".