21011022112199 has 16 divisors (see below), whose sum is σ = 24112238558016. Its totient is φ = 17934786028800.

The previous prime is 21011022112187. The next prime is 21011022112261. The reversal of 21011022112199 is 99121122011012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21011022112199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011022112699) 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, 697139 + ... + 6519819.

It is an arithmetic number, because the mean of its divisors is an integer number (1507014909876).

Almost surely, 2^{21011022112199} is an apocalyptic number.

21011022112199 is a deficient number, since it is larger than the sum of its proper divisors (3101216445817).

21011022112199 is a wasteful number, since it uses less digits than its factorization.

21011022112199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824826.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 21011022112199 in words is "twenty-one trillion, eleven billion, twenty-two million, one hundred twelve thousand, one hundred ninety-nine".