12102111221110 has 16 divisors (see below), whose sum is σ = 21786230773296. Its totient is φ = 4840304360608.

The previous prime is 12102111221099. The next prime is 12102111221111. The reversal of 12102111221110 is 1112211120121.

It is a super-2 number, since 2×12102111221110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102111221111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67421869 + ... + 67601128.

It is an arithmetic number, because the mean of its divisors is an integer number (1361639423331).

Almost surely, 2^{12102111221110} is an apocalyptic number.

12102111221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102111221110 is a deficient number, since it is larger than the sum of its proper divisors (9684119552186).

12102111221110 is a wasteful number, since it uses less digits than its factorization.

12102111221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135031967.

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

Adding to 12102111221110 its reverse (1112211120121), we get a palindrome (13214322341231).

The spelling of 12102111221110 in words is "twelve trillion, one hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred ten".