22333061721 has 32 divisors (see below), whose sum is σ = 32035627008. Its totient is φ = 13789497600.

The previous prime is 22333061717. The next prime is 22333061749. The reversal of 22333061721 is 12716033322.

It is not a de Polignac number, because 22333061721 - 2² = 22333061717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22333061701) 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 31 ways as a sum of consecutive naturals, for example, 810456 + ... + 837558.

It is an arithmetic number, because the mean of its divisors is an integer number (1001113344).

Almost surely, 2^22333061721 is an apocalyptic number.

It is an amenable number.

22333061721 is a deficient number, since it is larger than the sum of its proper divisors (9702565287).

22333061721 is a wasteful number, since it uses less digits than its factorization.

22333061721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27381.

The product of its (nonzero) digits is 9072, while the sum is 30.

The spelling of 22333061721 in words is "twenty-two billion, three hundred thirty-three million, sixty-one thousand, seven hundred twenty-one".