120002212100 has 216 divisors, whose sum is σ = 285922199808. Its totient is φ = 43663276800.

The previous prime is 120002212051. The next prime is 120002212123. The reversal of 120002212100 is 1212200021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 175698359 + ... + 175699041.

It is an arithmetic number, because the mean of its divisors is an integer number (1323713888).

Almost surely, 2^120002212100 is an apocalyptic number.

120002212100 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 120002212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142961099904).

120002212100 is an abundant number, since it is smaller than the sum of its proper divisors (165919987708).

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

120002212100 is a wasteful number, since it uses less digits than its factorization.

120002212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120002212100 its reverse (1212200021), we get a palindrome (121214412121).

The spelling of 120002212100 in words is "one hundred twenty billion, two million, two hundred twelve thousand, one hundred".