120002121020220 has 96 divisors (see below), whose sum is σ = 342013592471040. Its totient is φ = 31429400620800.

The previous prime is 120002121020123. The next prime is 120002121020227. The reversal of 120002121020220 is 22020121200021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120002121020220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002121020227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11638056 + ... + 19376495.

It is an arithmetic number, because the mean of its divisors is an integer number (3562641588240).

Almost surely, 2^{120002121020220} is an apocalyptic number.

120002121020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120002121020220 is an abundant number, since it is smaller than the sum of its proper divisors (222011471450820).

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

120002121020220 is a wasteful number, since it uses less digits than its factorization.

120002121020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31015715 (or 31015713 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120002121020220 its reverse (22020121200021), we get a palindrome (142022242220241).

The spelling of 120002121020220 in words is "one hundred twenty trillion, two billion, one hundred twenty-one million, twenty thousand, two hundred twenty".