21022120211113 has 16 divisors (see below), whose sum is σ = 24133557864960. Its totient is φ = 17937860184000.

The previous prime is 21022120211101. The next prime is 21022120211149. The reversal of 21022120211113 is 31111202122012.

It is a cyclic number.

It is not a de Polignac number, because 21022120211113 - 2⁹ = 21022120210601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022120211153) 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, 2177038 + ... + 6839863.

It is an arithmetic number, because the mean of its divisors is an integer number (1508347366560).

Almost surely, 2^{21022120211113} is an apocalyptic number.

It is an amenable number.

21022120211113 is a deficient number, since it is larger than the sum of its proper divisors (3111437653847).

21022120211113 is a wasteful number, since it uses less digits than its factorization.

21022120211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018408.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21022120211113 its reverse (31111202122012), we get a palindrome (52133322333125).

The spelling of 21022120211113 in words is "twenty-one trillion, twenty-two billion, one hundred twenty million, two hundred eleven thousand, one hundred thirteen".