121020000202020 has 48 divisors (see below), whose sum is σ = 339195876360768. Its totient is φ = 32239630930560.

The previous prime is 121020000202009. The next prime is 121020000202039. The reversal of 121020000202020 is 20202000020121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121020000201987 and 121020000202005.

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, 1011474786 + ... + 1011594425.

It is an arithmetic number, because the mean of its divisors is an integer number (7066580757516).

Almost surely, 2^{121020000202020} is an apocalyptic number.

121020000202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020000202020 is an abundant number, since it is smaller than the sum of its proper divisors (218175876158748).

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

121020000202020 is a wasteful number, since it uses less digits than its factorization.

121020000202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023070220 (or 2023070218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 121020000202020 its reverse (20202000020121), we get a palindrome (141222000222141).

The spelling of 121020000202020 in words is "one hundred twenty-one trillion, twenty billion, two hundred two thousand, twenty".