12100122111000 has 512 divisors, whose sum is σ = 47125834629120. Its totient is φ = 2511216576000.

The previous prime is 12100122110981. The next prime is 12100122111067. The reversal of 12100122111000 is 11122100121.

It is a super-2 number, since 2×12100122111000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 190081177 + ... + 190144823.

It is an arithmetic number, because the mean of its divisors is an integer number (92042645760).

Almost surely, 2^{12100122111000} is an apocalyptic number.

12100122111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100122111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23562917314560).

12100122111000 is an abundant number, since it is smaller than the sum of its proper divisors (35025712518120).

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

12100122111000 is a wasteful number, since it uses less digits than its factorization.

12100122111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64512 (or 64498 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12100122111000 its reverse (11122100121), we get a palindrome (12111244211121).

The spelling of 12100122111000 in words is "twelve trillion, one hundred billion, one hundred twenty-two million, one hundred eleven thousand".