22121310308 has 6 divisors (see below), whose sum is σ = 38712293046. Its totient is φ = 11060655152.

The previous prime is 22121310307. The next prime is 22121310331. The reversal of 22121310308 is 80301312122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15942092644 + 6179217664 = 126262^2 + 78608^2 .

It is not an unprimeable number, because it can be changed into a prime (22121310307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765163785 + ... + 2765163792.

It is an arithmetic number, because the mean of its divisors is an integer number (6452048841).

Almost surely, 2^22121310308 is an apocalyptic number.

It is an amenable number.

22121310308 is a deficient number, since it is larger than the sum of its proper divisors (16590982738).

22121310308 is a wasteful number, since it uses less digits than its factorization.

22121310308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530327581 (or 5530327579 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22121310308 in words is "twenty-two billion, one hundred twenty-one million, three hundred ten thousand, three hundred eight".