12021122122110 has 192 divisors, whose sum is σ = 32949033137280. Its totient is φ = 3034764902400.

The previous prime is 12021122122109. The next prime is 12021122122157. The reversal of 12021122122110 is 1122122112021.

12021122122110 is a `hidden beast` number, since 1 + 2 + 0 + 211 + 221 + 221 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 655843426 + ... + 655861754.

It is an arithmetic number, because the mean of its divisors is an integer number (171609547590).

Almost surely, 2^{12021122122110} is an apocalyptic number.

12021122122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021122122110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16474516568640).

12021122122110 is an abundant number, since it is smaller than the sum of its proper divisors (20927911015170).

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

12021122122110 is a wasteful number, since it uses less digits than its factorization.

12021122122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21603 (or 21600 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12021122122110 its reverse (1122122112021), we get a palindrome (13143244234131).

The spelling of 12021122122110 in words is "twelve trillion, twenty-one billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred ten".