121020123330220 has 48 divisors (see below), whose sum is σ = 261019973259360. Its totient is φ = 47098098791424.

The previous prime is 121020123330217. The next prime is 121020123330277. The reversal of 121020123330220 is 22033321020121.

It is a junction number, because it is equal to n+sod(n) for n = 121020123330191 and 121020123330200.

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 15 ways as a sum of consecutive naturals, for example, 18754971 + ... + 24367789.

It is an arithmetic number, because the mean of its divisors is an integer number (5437916109570).

Almost surely, 2^{121020123330220} is an apocalyptic number.

121020123330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020123330220 is an abundant number, since it is smaller than the sum of its proper divisors (139999849929140).

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

121020123330220 is a wasteful number, since it uses less digits than its factorization.

121020123330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642002 (or 5642000 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121020123330220 its reverse (22033321020121), we get a palindrome (143053444350341).

The spelling of 121020123330220 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty-three million, three hundred thirty thousand, two hundred twenty".