11221000212251 has 2 divisors, whose sum is σ = 11221000212252. Its totient is φ = 11221000212250.

The previous prime is 11221000212239. The next prime is 11221000212263. The reversal of 11221000212251 is 15221200012211.

It is a balanced prime because it is at equal distance from previous prime (11221000212239) and next prime (11221000212263).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221000212251 is a prime.

It is not a weakly prime, because it can be changed into another prime (11221000212271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610500106125 + 5610500106126.

It is an arithmetic number, because the mean of its divisors is an integer number (5610500106126).

Almost surely, 2^{11221000212251} is an apocalyptic number.

11221000212251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221000212251 is an equidigital number, since it uses as much as digits as its factorization.

11221000212251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 11221000212251 its reverse (15221200012211), we get a palindrome (26442200224462).

The spelling of 11221000212251 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve thousand, two hundred fifty-one".