21120112110110 has 64 divisors (see below), whose sum is σ = 41016965117184. Its totient is φ = 7783646400000.

The previous prime is 21120112110101. The next prime is 21120112110169. The reversal of 21120112110110 is 1101121102112.

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 31 ways as a sum of consecutive naturals, for example, 185537732 + ... + 185651528.

It is an arithmetic number, because the mean of its divisors is an integer number (640890079956).

Almost surely, 2^{21120112110110} is an apocalyptic number.

21120112110110 is a deficient number, since it is larger than the sum of its proper divisors (19896853007074).

21120112110110 is a wasteful number, since it uses less digits than its factorization.

21120112110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116469.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 21120112110110 its reverse (1101121102112), we get a palindrome (22221233212222).

The spelling of 21120112110110 in words is "twenty-one trillion, one hundred twenty billion, one hundred twelve million, one hundred ten thousand, one hundred ten".