12000122221110 has 64 divisors (see below), whose sum is σ = 29732643440640. Its totient is φ = 3096461111040.

The previous prime is 12000122221093. The next prime is 12000122221133. The reversal of 12000122221110 is 1112222100021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000122221110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7696546 + ... + 9123434.

It is an arithmetic number, because the mean of its divisors is an integer number (464572553760).

Almost surely, 2^{12000122221110} is an apocalyptic number.

12000122221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12000122221110 is an abundant number, since it is smaller than the sum of its proper divisors (17732521219530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000122221110 is a wasteful number, since it uses less digits than its factorization.

12000122221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435973.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12000122221110 its reverse (1112222100021), we get a palindrome (13112344321131).

The spelling of 12000122221110 in words is "twelve trillion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".