11111000221019 has 2 divisors, whose sum is σ = 11111000221020. Its totient is φ = 11111000221018.

The previous prime is 11111000221001. The next prime is 11111000221051. The reversal of 11111000221019 is 91012200011111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111000221019 is a prime.

It is a super-2 number, since 2×11111000221019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11111000281019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500110509 + 5555500110510.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500110510).

Almost surely, 2^{11111000221019} is an apocalyptic number.

11111000221019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111000221019 is an equidigital number, since it uses as much as digits as its factorization.

11111000221019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 11111000221019 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one thousand, nineteen".