12000222120100 has 72 divisors (see below), whose sum is σ = 27419033159840. Its totient is φ = 4546125492480.

The previous prime is 12000222120049. The next prime is 12000222120101. The reversal of 12000222120100 is 102122200021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12000222120101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5602819 + ... + 7442581.

Almost surely, 2^{12000222120100} is an apocalyptic number.

12000222120100 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 12000222120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13709516579920).

12000222120100 is an abundant number, since it is smaller than the sum of its proper divisors (15418811039740).

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

12000222120100 is a wasteful number, since it uses less digits than its factorization.

12000222120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843229 (or 1843222 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12000222120100 its reverse (102122200021), we get a palindrome (12102344320121).

The spelling of 12000222120100 in words is "twelve trillion, two hundred twenty-two million, one hundred twenty thousand, one hundred".