11212021120051 has 2 divisors, whose sum is σ = 11212021120052. Its totient is φ = 11212021120050.

The previous prime is 11212021120007. The next prime is 11212021120099. The reversal of 11212021120051 is 15002112021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11212021120051 - 2¹⁵ = 11212021087283 is a prime.

It is a super-3 number, since 3×11212021120051³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11212021126051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606010560025 + 5606010560026.

It is an arithmetic number, because the mean of its divisors is an integer number (5606010560026).

Almost surely, 2^{11212021120051} is an apocalyptic number.

11212021120051 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212021120051 is an equidigital number, since it uses as much as digits as its factorization.

11212021120051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 11212021120051 its reverse (15002112021211), we get a palindrome (26214133141262).

The spelling of 11212021120051 in words is "eleven trillion, two hundred twelve billion, twenty-one million, one hundred twenty thousand, fifty-one".