12201120102020 has 72 divisors (see below), whose sum is σ = 27388492853400. Its totient is φ = 4560151464960.

The previous prime is 12201120101999. The next prime is 12201120102037. The reversal of 12201120102020 is 2020102110221.

It can be written as a sum of positive squares in 4 ways, for example, as 4027559306884 + 8173560795136 = 2006878^2 + 2858944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12201120101986 and 12201120102004.

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 23 ways as a sum of consecutive naturals, for example, 10387685 + ... + 11502444.

It is an arithmetic number, because the mean of its divisors is an integer number (380395734075).

Almost surely, 2^{12201120102020} is an apocalyptic number.

12201120102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201120102020 is an abundant number, since it is smaller than the sum of its proper divisors (15187372751380).

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

12201120102020 is a wasteful number, since it uses less digits than its factorization.

12201120102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21890229 (or 21890196 counting only the distinct ones).

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

Adding to 12201120102020 its reverse (2020102110221), we get a palindrome (14221222212241).

The spelling of 12201120102020 in words is "twelve trillion, two hundred one billion, one hundred twenty million, one hundred two thousand, twenty".