21200112110102 has 16 divisors (see below), whose sum is σ = 31806821338800. Its totient is φ = 10597838549760.

The previous prime is 21200112110087. The next prime is 21200112110129. The reversal of 21200112110102 is 20101121100212.

It is a super-3 number, since 3×21200112110102³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249344174 + ... + 249429182.

It is an arithmetic number, because the mean of its divisors is an integer number (1987926333675).

Almost surely, 2^{21200112110102} is an apocalyptic number.

21200112110102 is a deficient number, since it is larger than the sum of its proper divisors (10606709228698).

21200112110102 is a wasteful number, since it uses less digits than its factorization.

21200112110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109631.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21200112110102 its reverse (20101121100212), we get a palindrome (41301233210314).

The spelling of 21200112110102 in words is "twenty-one trillion, two hundred billion, one hundred twelve million, one hundred ten thousand, one hundred two".