22053036721 has 8 divisors (see below), whose sum is σ = 22561559424. Its totient is φ = 21550011840.

The previous prime is 22053036713. The next prime is 22053036743. The reversal of 22053036721 is 12763035022.

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

It is a cyclic number.

It is not a de Polignac number, because 22053036721 - 2³ = 22053036713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22053036791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366341 + ... + 1382386.

It is an arithmetic number, because the mean of its divisors is an integer number (2820194928).

Almost surely, 2^22053036721 is an apocalyptic number.

It is an amenable number.

22053036721 is a deficient number, since it is larger than the sum of its proper divisors (508522703).

22053036721 is a wasteful number, since it uses less digits than its factorization.

22053036721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748911.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 22053036721 in words is "twenty-two billion, fifty-three million, thirty-six thousand, seven hundred twenty-one".