11102002221251 has 2 divisors, whose sum is σ = 11102002221252. Its totient is φ = 11102002221250.

The previous prime is 11102002221209. The next prime is 11102002221283. The reversal of 11102002221251 is 15212220020111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11102002221251 is a prime.

It is not a weakly prime, because it can be changed into another prime (11102002221151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551001110625 + 5551001110626.

It is an arithmetic number, because the mean of its divisors is an integer number (5551001110626).

Almost surely, 2^{11102002221251} is an apocalyptic number.

11102002221251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102002221251 is an equidigital number, since it uses as much as digits as its factorization.

11102002221251 is an evil number, because the sum of its binary digits is even.

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

Adding to 11102002221251 its reverse (15212220020111), we get a palindrome (26314222241362).

The spelling of 11102002221251 in words is "eleven trillion, one hundred two billion, two million, two hundred twenty-one thousand, two hundred fifty-one".