121002022220 has 12 divisors (see below), whose sum is σ = 254104246704. Its totient is φ = 48400808880.

The previous prime is 121002022171. The next prime is 121002022261. The reversal of 121002022220 is 22220200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002022195 and 121002022204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025050536 + ... + 3025050575.

It is an arithmetic number, because the mean of its divisors is an integer number (21175353892).

Almost surely, 2^121002022220 is an apocalyptic number.

121002022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002022220 is an abundant number, since it is smaller than the sum of its proper divisors (133102224484).

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

121002022220 is a wasteful number, since it uses less digits than its factorization.

121002022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050101120 (or 6050101118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 121002022220 its reverse (22220200121), we get a palindrome (143222222341).

The spelling of 121002022220 in words is "one hundred twenty-one billion, two million, twenty-two thousand, two hundred twenty".