21122302113 has 12 divisors (see below), whose sum is σ = 33283627728. Its totient is φ = 12801395160.

The previous prime is 21122302099. The next prime is 21122302129. The reversal of 21122302113 is 31120322112.

It is not a de Polignac number, because 21122302113 - 2⁶ = 21122302049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21122302193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106678195 + ... + 106678392.

It is an arithmetic number, because the mean of its divisors is an integer number (2773635644).

Almost surely, 2^21122302113 is an apocalyptic number.

It is an amenable number.

21122302113 is a deficient number, since it is larger than the sum of its proper divisors (12161325615).

21122302113 is a wasteful number, since it uses less digits than its factorization.

21122302113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213356604 (or 213356601 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21122302113 its reverse (31120322112), we get a palindrome (52242624225).

The spelling of 21122302113 in words is "twenty-one billion, one hundred twenty-two million, three hundred two thousand, one hundred thirteen".