120021111120220 has 96 divisors (see below), whose sum is σ = 270118582272000. Its totient is φ = 44678749572864.

The previous prime is 120021111120181. The next prime is 120021111120241. The reversal of 120021111120220 is 22021111120021.

It is a super-2 number, since 2×120021111120220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120021111120194 and 120021111120203.

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 31 ways as a sum of consecutive naturals, for example, 786230661 + ... + 786383299.

It is an arithmetic number, because the mean of its divisors is an integer number (2813735232000).

Almost surely, 2^{120021111120220} is an apocalyptic number.

120021111120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021111120220 is an abundant number, since it is smaller than the sum of its proper divisors (150097471151780).

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

120021111120220 is a wasteful number, since it uses less digits than its factorization.

120021111120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198907 (or 198905 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120021111120220 its reverse (22021111120021), we get a palindrome (142042222240241).

The spelling of 120021111120220 in words is "one hundred twenty trillion, twenty-one billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty".