120100212121000 has 128 divisors (see below), whose sum is σ = 291147438965760. Its totient is φ = 46322565984000.

The previous prime is 120100212120991. The next prime is 120100212121033. The reversal of 120100212121000 is 121212001021.

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, 1593859 + ... + 15580141.

It is an arithmetic number, because the mean of its divisors is an integer number (2274589366920).

Almost surely, 2^{120100212121000} is an apocalyptic number.

120100212121000 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 120100212121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145573719482880).

120100212121000 is an abundant number, since it is smaller than the sum of its proper divisors (171047226844760).

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

120100212121000 is a wasteful number, since it uses less digits than its factorization.

120100212121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986612 (or 13986598 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120100212121000 its reverse (121212001021), we get a palindrome (120221424122021).

The spelling of 120100212121000 in words is "one hundred twenty trillion, one hundred billion, two hundred twelve million, one hundred twenty-one thousand".