120111020221220 has 96 divisors (see below), whose sum is σ = 306772656486912. Its totient is φ = 38561770211328.

The previous prime is 120111020221211. The next prime is 120111020221259. The reversal of 120111020221220 is 22122020111021.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 127619504 + ... + 128557223.

It is an arithmetic number, because the mean of its divisors is an integer number (3195548505072).

Almost surely, 2^{120111020221220} is an apocalyptic number.

120111020221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111020221220 is an abundant number, since it is smaller than the sum of its proper divisors (186661636265692).

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

120111020221220 is a wasteful number, since it uses less digits than its factorization.

120111020221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256176957 (or 256176955 counting only the distinct ones).

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

Adding to 120111020221220 its reverse (22122020111021), we get a palindrome (142233040332241).

The spelling of 120111020221220 in words is "one hundred twenty trillion, one hundred eleven billion, twenty million, two hundred twenty-one thousand, two hundred twenty".