120021102112220 has 48 divisors (see below), whose sum is σ = 256201476285216. Its totient is φ = 47216755872000.

The previous prime is 120021102112181. The next prime is 120021102112229. The reversal of 120021102112220 is 22211201120021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021102112229) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7521515 + ... + 17222525.

It is an arithmetic number, because the mean of its divisors is an integer number (5337530755942).

Almost surely, 2^{120021102112220} is an apocalyptic number.

120021102112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021102112220 is an abundant number, since it is smaller than the sum of its proper divisors (136180374172996).

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

120021102112220 is a wasteful number, since it uses less digits than its factorization.

120021102112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9711222 (or 9711220 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120021102112220 its reverse (22211201120021), we get a palindrome (142232303232241).

The spelling of 120021102112220 in words is "one hundred twenty trillion, twenty-one billion, one hundred two million, one hundred twelve thousand, two hundred twenty".