21120014422013 has 16 divisors (see below), whose sum is σ = 23256647527680. Its totient is φ = 19057529701056.

The previous prime is 21120014421997. The next prime is 21120014422019. The reversal of 21120014422013 is 31022441002112.

It is a cyclic number.

It is not a de Polignac number, because 21120014422013 - 2⁴ = 21120014421997 is a prime.

It is a super-2 number, since 2×21120014422013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21120014422013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120014422019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20393318 + ... + 21403911.

It is an arithmetic number, because the mean of its divisors is an integer number (1453540470480).

Almost surely, 2^{21120014422013} is an apocalyptic number.

It is an amenable number.

21120014422013 is a deficient number, since it is larger than the sum of its proper divisors (2136633105667).

21120014422013 is a wasteful number, since it uses less digits than its factorization.

21120014422013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41798116.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21120014422013 its reverse (31022441002112), we get a palindrome (52142455424125).

The spelling of 21120014422013 in words is "twenty-one trillion, one hundred twenty billion, fourteen million, four hundred twenty-two thousand, thirteen".