21110112212102 has 8 divisors (see below), whose sum is σ = 31699253539800. Its totient is φ = 10543694365504.

The previous prime is 21110112212099. The next prime is 21110112212113. The reversal of 21110112212102 is 20121221101112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680867952 + ... + 5680871667.

It is an arithmetic number, because the mean of its divisors is an integer number (3962406692475).

Almost surely, 2^{21110112212102} is an apocalyptic number.

21110112212102 is a deficient number, since it is larger than the sum of its proper divisors (10589141327698).

21110112212102 is a wasteful number, since it uses less digits than its factorization.

21110112212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11361740550.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21110112212102 its reverse (20121221101112), we get a palindrome (41231333313214).

The spelling of 21110112212102 in words is "twenty-one trillion, one hundred ten billion, one hundred twelve million, two hundred twelve thousand, one hundred two".