11221212019 has 2 divisors, whose sum is σ = 11221212020. Its totient is φ = 11221212018.

The previous prime is 11221212007. The next prime is 11221212029. The reversal of 11221212019 is 91021212211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11221212019 - 2⁷ = 11221211891 is a prime.

It is a super-2 number, since 2×11221212019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11221212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610606009 + 5610606010.

It is an arithmetic number, because the mean of its divisors is an integer number (5610606010).

Almost surely, 2^11221212019 is an apocalyptic number.

11221212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221212019 is an equidigital number, since it uses as much as digits as its factorization.

11221212019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 11221212019 in words is "eleven billion, two hundred twenty-one million, two hundred twelve thousand, nineteen".