121120302220 has 48 divisors (see below), whose sum is σ = 269371968768. Its totient is φ = 45588510720.

The previous prime is 121120302181. The next prime is 121120302241. The reversal of 121120302220 is 22203021121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121120302194 and 121120302203.

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, 1672360 + ... + 1743280.

It is an arithmetic number, because the mean of its divisors is an integer number (5611916016).

Almost surely, 2^121120302220 is an apocalyptic number.

121120302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120302220 is an abundant number, since it is smaller than the sum of its proper divisors (148251666548).

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

121120302220 is a wasteful number, since it uses less digits than its factorization.

121120302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75970 (or 75968 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121120302220 its reverse (22203021121), we get a palindrome (143323323341).

The spelling of 121120302220 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred two thousand, two hundred twenty".