120121102220 has 24 divisors (see below), whose sum is σ = 288290645664. Its totient is φ = 41184377856.

The previous prime is 120121102219. The next prime is 120121102259. The reversal of 120121102220 is 22201121021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 120121102195 and 120121102204.

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 7 ways as a sum of consecutive naturals, for example, 429003797 + ... + 429004076.

It is an arithmetic number, because the mean of its divisors is an integer number (12012110236).

Almost surely, 2^120121102220 is an apocalyptic number.

120121102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121102220 is an abundant number, since it is smaller than the sum of its proper divisors (168169543444).

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

120121102220 is a wasteful number, since it uses less digits than its factorization.

120121102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858007889 (or 858007887 counting only the distinct ones).

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

Adding to 120121102220 its reverse (22201121021), we get a palindrome (142322223241).

The spelling of 120121102220 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty".