111122021220499 has 2 divisors, whose sum is σ = 111122021220500. Its totient is φ = 111122021220498.

The previous prime is 111122021220473. The next prime is 111122021220557. The reversal of 111122021220499 is 994022120221111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111122021220499 - 2¹⁵ = 111122021187731 is a prime.

It is not a weakly prime, because it can be changed into another prime (111122021220409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561010610249 + 55561010610250.

It is an arithmetic number, because the mean of its divisors is an integer number (55561010610250).

Almost surely, 2^{111122021220499} is an apocalyptic number.

111122021220499 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122021220499 is an equidigital number, since it uses as much as digits as its factorization.

111122021220499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 111122021220499 in words is "one hundred eleven trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty thousand, four hundred ninety-nine".