11102220251 has 2 divisors, whose sum is σ = 11102220252. Its totient is φ = 11102220250.

The previous prime is 11102220223. The next prime is 11102220293. The reversal of 11102220251 is 15202220111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11102220251 - 2¹⁴ = 11102203867 is a prime.

It is not a weakly prime, because it can be changed into another prime (11102220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551110125 + 5551110126.

It is an arithmetic number, because the mean of its divisors is an integer number (5551110126).

Almost surely, 2^11102220251 is an apocalyptic number.

11102220251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102220251 is an equidigital number, since it uses as much as digits as its factorization.

11102220251 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 17.

Adding to 11102220251 its reverse (15202220111), we get a palindrome (26304440362).

The spelling of 11102220251 in words is "eleven billion, one hundred two million, two hundred twenty thousand, two hundred fifty-one".