120221121122100 has 108 divisors (see below), whose sum is σ = 380484934482016. Its totient is φ = 31747713514560.

The previous prime is 120221121122033. The next prime is 120221121122143. The reversal of 120221121122100 is 1221121122021.

120221121122100 is a `hidden beast` number, since 1 + 20 + 2 + 211 + 211 + 221 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 648349162 + ... + 648534561.

Almost surely, 2^{120221121122100} is an apocalyptic number.

120221121122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221121122100 is an abundant number, since it is smaller than the sum of its proper divisors (260263813359916).

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

120221121122100 is a wasteful number, since it uses less digits than its factorization.

120221121122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296883846 (or 1296883836 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120221121122100 its reverse (1221121122021), we get a palindrome (121442242244121).

The spelling of 120221121122100 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred".