12200102212021 has 4 divisors (see below), whose sum is σ = 12226566642444. Its totient is φ = 12173637781600.

The previous prime is 12200102211971. The next prime is 12200102212057. The reversal of 12200102212021 is 12021220100221.

It is a happy number.

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 1792155173796 + 10407947038225 = 1338714^2 + 3226135^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200102212021 - 2¹³ = 12200102203829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200102211986 and 12200102212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200102219021) 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, 13232214520 + ... + 13232215441.

It is an arithmetic number, because the mean of its divisors is an integer number (3056641660611).

Almost surely, 2^{12200102212021} is an apocalyptic number.

It is an amenable number.

12200102212021 is a deficient number, since it is larger than the sum of its proper divisors (26464430423).

12200102212021 is an equidigital number, since it uses as much as digits as its factorization.

12200102212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26464430422.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12200102212021 its reverse (12021220100221), we get a palindrome (24221322312242).

The spelling of 12200102212021 in words is "twelve trillion, two hundred billion, one hundred two million, two hundred twelve thousand, twenty-one".