120100021212220 has 48 divisors (see below), whose sum is σ = 294372817966080. Its totient is φ = 40301040550464.

The previous prime is 120100021212191. The next prime is 120100021212251. The reversal of 120100021212220 is 22212120001021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120100021212194 and 120100021212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9126134850 + ... + 9126148009.

It is an arithmetic number, because the mean of its divisors is an integer number (6132767040960).

Almost surely, 2^{120100021212220} is an apocalyptic number.

120100021212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100021212220 is an abundant number, since it is smaller than the sum of its proper divisors (174272796753860).

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

120100021212220 is a wasteful number, since it uses less digits than its factorization.

120100021212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18252282922 (or 18252282920 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120100021212220 its reverse (22212120001021), we get a palindrome (142312141213241).

The spelling of 120100021212220 in words is "one hundred twenty trillion, one hundred billion, twenty-one million, two hundred twelve thousand, two hundred twenty".