12201200212021 has 2 divisors, whose sum is σ = 12201200212022. Its totient is φ = 12201200212020.

The previous prime is 12201200212007. The next prime is 12201200212031. The reversal of 12201200212021 is 12021200210221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10516951710225 + 1684248501796 = 3242985^2 + 1297786^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201200212021 - 2²³ = 12201191823413 is a prime.

It is a super-2 number, since 2×12201200212021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12201200211986 and 12201200212004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201200212001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100600106010 + 6100600106011.

It is an arithmetic number, because the mean of its divisors is an integer number (6100600106011).

Almost surely, 2^{12201200212021} is an apocalyptic number.

It is an amenable number.

12201200212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201200212021 is an equidigital number, since it uses as much as digits as its factorization.

12201200212021 is an evil number, because the sum of its binary digits is even.

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

Adding to 12201200212021 its reverse (12021200210221), we get a palindrome (24222400422242).

The spelling of 12201200212021 in words is "twelve trillion, two hundred one billion, two hundred million, two hundred twelve thousand, twenty-one".