121100020122020 has 24 divisors (see below), whose sum is σ = 267694781323200. Its totient is φ = 45890533940832.

The previous prime is 121100020122013. The next prime is 121100020122073. The reversal of 121100020122020 is 20221020001121.

It is a junction number, because it is equal to n+sod(n) for n = 121100020121986 and 121100020122004.

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 7 ways as a sum of consecutive naturals, for example, 159342131360 + ... + 159342132119.

It is an arithmetic number, because the mean of its divisors is an integer number (11153949221800).

Almost surely, 2^{121100020122020} is an apocalyptic number.

121100020122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121100020122020 is an abundant number, since it is smaller than the sum of its proper divisors (146594761201180).

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

121100020122020 is a wasteful number, since it uses less digits than its factorization.

121100020122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318684263507 (or 318684263505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121100020122020 its reverse (20221020001121), we get a palindrome (141321040123141).

The spelling of 121100020122020 in words is "one hundred twenty-one trillion, one hundred billion, twenty million, one hundred twenty-two thousand, twenty".