11022111219991 has 2 divisors, whose sum is σ = 11022111219992. Its totient is φ = 11022111219990.

The previous prime is 11022111219989. The next prime is 11022111220049. The reversal of 11022111219991 is 19991211122011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11022111219991 - 2¹ = 11022111219989 is a prime.

Together with 11022111219989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11022111219391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511055609995 + 5511055609996.

It is an arithmetic number, because the mean of its divisors is an integer number (5511055609996).

Almost surely, 2^{11022111219991} is an apocalyptic number.

11022111219991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022111219991 is an equidigital number, since it uses as much as digits as its factorization.

11022111219991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 11022111219991 in words is "eleven trillion, twenty-two billion, one hundred eleven million, two hundred nineteen thousand, nine hundred ninety-one".