21132222012113 has 2 divisors, whose sum is σ = 21132222012114. Its totient is φ = 21132222012112.

The previous prime is 21132222012101. The next prime is 21132222012203. The reversal of 21132222012113 is 31121022223112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21102336937984 + 29885074129 = 4593728^2 + 172873^2 .

It is a cyclic number.

It is not a de Polignac number, because 21132222012113 - 2²⁰ = 21132220963537 is a prime.

It is not a weakly prime, because it can be changed into another prime (21132222018113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566111006056 + 10566111006057.

It is an arithmetic number, because the mean of its divisors is an integer number (10566111006057).

Almost surely, 2^{21132222012113} is an apocalyptic number.

It is an amenable number.

21132222012113 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132222012113 is an equidigital number, since it uses as much as digits as its factorization.

21132222012113 is an odious number, because the sum of its binary digits is odd.

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

Adding to 21132222012113 its reverse (31121022223112), we get a palindrome (52253244235225).

The spelling of 21132222012113 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred twenty-two million, twelve thousand, one hundred thirteen".