12200111201021 has 4 divisors (see below), whose sum is σ = 12203840984544. Its totient is φ = 12196381417500.

The previous prime is 12200111201011. The next prime is 12200111201023. The reversal of 12200111201021 is 12010211100221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12200111201021 - 2³⁰ = 12199037459197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200111200987 and 12200111201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200111201023) 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, 1864886855 + ... + 1864893396.

It is an arithmetic number, because the mean of its divisors is an integer number (3050960246136).

Almost surely, 2^{12200111201021} is an apocalyptic number.

It is an amenable number.

12200111201021 is a deficient number, since it is larger than the sum of its proper divisors (3729783523).

12200111201021 is an equidigital number, since it uses as much as digits as its factorization.

12200111201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729783522.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12200111201021 its reverse (12010211100221), we get a palindrome (24210322301242).

The spelling of 12200111201021 in words is "twelve trillion, two hundred billion, one hundred eleven million, two hundred one thousand, twenty-one".