12200011021021 has 4 divisors (see below), whose sum is σ = 12203536020444. Its totient is φ = 12196486021600.

The previous prime is 12200011021001. The next prime is 12200011021049. The reversal of 12200011021021 is 12012011000221.

12200011021021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7362870598521 + 4837140422500 = 2713461^2 + 2199350^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200011021021 - 2⁷ = 12200011020893 is a prime.

It is a super-3 number, since 3×12200011021021³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200011020992 and 12200011021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200011021001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1762494520 + ... + 1762501441.

It is an arithmetic number, because the mean of its divisors is an integer number (3050884005111).

Almost surely, 2^{12200011021021} is an apocalyptic number.

It is an amenable number.

12200011021021 is a deficient number, since it is larger than the sum of its proper divisors (3524999423).

12200011021021 is an equidigital number, since it uses as much as digits as its factorization.

12200011021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524999422.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12200011021021 its reverse (12012011000221), we get a palindrome (24212022021242).

The spelling of 12200011021021 in words is "twelve trillion, two hundred billion, eleven million, twenty-one thousand, twenty-one".