120002020111220 has 48 divisors (see below), whose sum is σ = 271390161622608. Its totient is φ = 44308278574080.

The previous prime is 120002020111219. The next prime is 120002020111223. The reversal of 120002020111220 is 22111020200021.

It can be written as a sum of positive squares in 8 ways, for example, as 26771331506404 + 93230688604816 = 5174102^2 + 9655604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120002020111195 and 120002020111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002020111223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90911792 + ... + 92222328.

It is an arithmetic number, because the mean of its divisors is an integer number (5653961700471).

Almost surely, 2^{120002020111220} is an apocalyptic number.

120002020111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120002020111220 is an abundant number, since it is smaller than the sum of its proper divisors (151388141511388).

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

120002020111220 is a wasteful number, since it uses less digits than its factorization.

120002020111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662740 (or 1662738 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120002020111220 its reverse (22111020200021), we get a palindrome (142113040311241).

The spelling of 120002020111220 in words is "one hundred twenty trillion, two billion, twenty million, one hundred eleven thousand, two hundred twenty".