12101121002100 has 144 divisors (see below), whose sum is σ = 38268626637248. Its totient is φ = 2934278645760.

The previous prime is 12101121002059. The next prime is 12101121002137. The reversal of 12101121002100 is 120012110121.

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 47 ways as a sum of consecutive naturals, for example, 22894309 + ... + 23416908.

Almost surely, 2^{12101121002100} is an apocalyptic number.

12101121002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101121002100 is an abundant number, since it is smaller than the sum of its proper divisors (26167505635148).

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

12101121002100 is a wasteful number, since it uses less digits than its factorization.

12101121002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46311314 (or 46311307 counting only the distinct ones).

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

Adding to 12101121002100 its reverse (120012110121), we get a palindrome (12221133112221).

The spelling of 12101121002100 in words is "twelve trillion, one hundred one billion, one hundred twenty-one million, two thousand, one hundred".