121101121202020 has 24 divisors (see below), whose sum is σ = 254315738283264. Its totient is φ = 48439803955296.

The previous prime is 121101121202011. The next prime is 121101121202029. The reversal of 121101121202020 is 20202121101121.

121101121202020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121101121202011) and next prime (121101121202029).

It is a junction number, because it is equal to n+sod(n) for n = 121101121201985 and 121101121202003.

It is not an unprimeable number, because it can be changed into a prime (121101121202029) by changing a digit.

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, 38740692 + ... + 41749771.

It is an arithmetic number, because the mean of its divisors is an integer number (10596489095136).

Almost surely, 2^{121101121202020} is an apocalyptic number.

121101121202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101121202020 is an abundant number, since it is smaller than the sum of its proper divisors (133214617081244).

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

121101121202020 is a wasteful number, since it uses less digits than its factorization.

121101121202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80565699 (or 80565697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121101121202020 its reverse (20202121101121), we get a palindrome (141303242303141).

It can be divided in two parts, 121101 and 121202020, that added together give a palindrome (121323121).

The spelling of 121101121202020 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twenty-one million, two hundred two thousand, twenty".