120021122000100 has 144 divisors (see below), whose sum is σ = 372434958262080. Its totient is φ = 29749028774400.

The previous prime is 120021122000099. The next prime is 120021122000113. The reversal of 120021122000100 is 1000221120021.

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

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, 198342591 + ... + 198946790.

It is an arithmetic number, because the mean of its divisors is an integer number (2586353876820).

Almost surely, 2^{120021122000100} is an apocalyptic number.

120021122000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021122000100 is an abundant number, since it is smaller than the sum of its proper divisors (252413836261980).

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

120021122000100 is a wasteful number, since it uses less digits than its factorization.

120021122000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397289470 (or 397289463 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120021122000100 its reverse (1000221120021), we get a palindrome (121021343120121).

The spelling of 120021122000100 in words is "one hundred twenty trillion, twenty-one billion, one hundred twenty-two million, one hundred", and thus it is an aban number.