11204212140221 has 2 divisors, whose sum is σ = 11204212140222. Its totient is φ = 11204212140220.

The previous prime is 11204212140197. The next prime is 11204212140281. The reversal of 11204212140221 is 12204121240211.

11204212140221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5741175405625 + 5463036734596 = 2396075^2 + 2337314^2 .

It is a cyclic number.

It is not a de Polignac number, because 11204212140221 - 2¹⁴ = 11204212123837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11204212140281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5602106070110 + 5602106070111.

It is an arithmetic number, because the mean of its divisors is an integer number (5602106070111).

Almost surely, 2^{11204212140221} is an apocalyptic number.

It is an amenable number.

11204212140221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11204212140221 is an equidigital number, since it uses as much as digits as its factorization.

11204212140221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 11204212140221 its reverse (12204121240211), we get a palindrome (23408333380432).

The spelling of 11204212140221 in words is "eleven trillion, two hundred four billion, two hundred twelve million, one hundred forty thousand, two hundred twenty-one".