121002304220 has 72 divisors (see below), whose sum is σ = 297077205600. Its totient is φ = 41277962880.

The previous prime is 121002304219. The next prime is 121002304231. The reversal of 121002304220 is 22403200121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115211 + ... + 505250.

It is an arithmetic number, because the mean of its divisors is an integer number (4126072300).

Almost surely, 2^121002304220 is an apocalyptic number.

121002304220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002304220 is an abundant number, since it is smaller than the sum of its proper divisors (176074901380).

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

121002304220 is a wasteful number, since it uses less digits than its factorization.

121002304220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620683 (or 620674 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 121002304220 its reverse (22403200121), we get a palindrome (143405504341).

The spelling of 121002304220 in words is "one hundred twenty-one billion, two million, three hundred four thousand, two hundred twenty".