21111201022199 has 32 divisors (see below), whose sum is σ = 23942011363200. Its totient is φ = 18508824576000.

The previous prime is 21111201022181. The next prime is 21111201022211. The reversal of 21111201022199 is 99122010211112.

It is a cyclic number.

It is not a de Polignac number, because 21111201022199 - 2²⁸ = 21110932586743 is a prime.

It is a super-2 number, since 2×21111201022199² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21111201022169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972874 + ... + 6790775.

It is an arithmetic number, because the mean of its divisors is an integer number (748187855100).

Almost surely, 2^{21111201022199} is an apocalyptic number.

21111201022199 is a deficient number, since it is larger than the sum of its proper divisors (2830810341001).

21111201022199 is a wasteful number, since it uses less digits than its factorization.

21111201022199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763851.

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

The spelling of 21111201022199 in words is "twenty-one trillion, one hundred eleven billion, two hundred one million, twenty-two thousand, one hundred ninety-nine".