12200120021021 has 8 divisors (see below), whose sum is σ = 12273458009304. Its totient is φ = 12126814413120.

The previous prime is 12200120020967. The next prime is 12200120021059. The reversal of 12200120021021 is 12012002100221.

12200120021021 is digitally balanced in base 2, 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 4 ways, for example, as 7926758702500 + 4273361318521 = 2815450^2 + 2067211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12200120021021 - 2¹⁴ = 12200120004637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200120020987 and 12200120021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200120024021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7339070 + ... + 8846591.

It is an arithmetic number, because the mean of its divisors is an integer number (1534182251163).

Almost surely, 2^{12200120021021} is an apocalyptic number.

It is an amenable number.

12200120021021 is a deficient number, since it is larger than the sum of its proper divisors (73337988283).

12200120021021 is a wasteful number, since it uses less digits than its factorization.

12200120021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16190191.

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

Adding to 12200120021021 its reverse (12012002100221), we get a palindrome (24212122121242).

The spelling of 12200120021021 in words is "twelve trillion, two hundred billion, one hundred twenty million, twenty-one thousand, twenty-one".