12221121020110 has 32 divisors (see below), whose sum is σ = 22033547387712. Its totient is φ = 4880554947840.

The previous prime is 12221121019997. The next prime is 12221121020179. The reversal of 12221121020110 is 1102012112221.

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 15 ways as a sum of consecutive naturals, for example, 50525719 + ... + 50767021.

It is an arithmetic number, because the mean of its divisors is an integer number (688548355866).

Almost surely, 2^{12221121020110} is an apocalyptic number.

12221121020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221121020110 is a deficient number, since it is larger than the sum of its proper divisors (9812426367602).

12221121020110 is a wasteful number, since it uses less digits than its factorization.

12221121020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249468.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221121020110 its reverse (1102012112221), we get a palindrome (13323133132331).

The spelling of 12221121020110 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty thousand, one hundred ten".