12102111020110 has 32 divisors (see below), whose sum is σ = 21798555563520. Its totient is φ = 4837566004128.

The previous prime is 12102111020107. The next prime is 12102111020141. The reversal of 12102111020110 is 1102011120121.

It is a happy number.

It is a super-2 number, since 2×12102111020110² (a number of 27 digits) contains 22 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174752871 + ... + 174822109.

It is an arithmetic number, because the mean of its divisors is an integer number (681204861360).

Almost surely, 2^{12102111020110} is an apocalyptic number.

12102111020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102111020110 is a deficient number, since it is larger than the sum of its proper divisors (9696444543410).

12102111020110 is a wasteful number, since it uses less digits than its factorization.

12102111020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80832.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12102111020110 its reverse (1102011120121), we get a palindrome (13204122140231).

The spelling of 12102111020110 in words is "twelve trillion, one hundred two billion, one hundred eleven million, twenty thousand, one hundred ten".