11212021020247 has 2 divisors, whose sum is σ = 11212021020248. Its totient is φ = 11212021020246.

The previous prime is 11212021020173. The next prime is 11212021020257. The reversal of 11212021020247 is 74202012021211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212021020247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212021020257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606010510123 + 5606010510124.

It is an arithmetic number, because the mean of its divisors is an integer number (5606010510124).

Almost surely, 2^{11212021020247} is an apocalyptic number.

11212021020247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212021020247 is an equidigital number, since it uses as much as digits as its factorization.

11212021020247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 11212021020247 its reverse (74202012021211), we get a palindrome (85414033041458).

The spelling of 11212021020247 in words is "eleven trillion, two hundred twelve billion, twenty-one million, twenty thousand, two hundred forty-seven".