21100220233198 has 16 divisors (see below), whose sum is σ = 31743528721920. Its totient is φ = 10519053319000.

The previous prime is 21100220233187. The next prime is 21100220233207. The reversal of 21100220233198 is 89133202200112.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2203023 + ... + 6859573.

It is an arithmetic number, because the mean of its divisors is an integer number (1983970545120).

Almost surely, 2^{21100220233198} is an apocalyptic number.

21100220233198 is a deficient number, since it is larger than the sum of its proper divisors (10643308488722).

21100220233198 is a wasteful number, since it uses less digits than its factorization.

21100220233198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663223.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 21100220233198 in words is "twenty-one trillion, one hundred billion, two hundred twenty million, two hundred thirty-three thousand, one hundred ninety-eight".