121202100210020 has 12 divisors (see below), whose sum is σ = 254524410441084. Its totient is φ = 48480840084000.

The previous prime is 121202100210001. The next prime is 121202100210049. The reversal of 121202100210020 is 20012001202121.

121202100210020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 77266068972544 + 43936031237476 = 8790112^2 + 6628426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121202100209977 and 121202100210004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030052505231 + ... + 3030052505270.

It is an arithmetic number, because the mean of its divisors is an integer number (21210367536757).

Almost surely, 2^{121202100210020} is an apocalyptic number.

121202100210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202100210020 is an abundant number, since it is smaller than the sum of its proper divisors (133322310231064).

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

121202100210020 is a wasteful number, since it uses less digits than its factorization.

121202100210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060105010510 (or 6060105010508 counting only the distinct ones).

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

Adding to 121202100210020 its reverse (20012001202121), we get a palindrome (141214101412141).

The spelling of 121202100210020 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred million, two hundred ten thousand, twenty".