222099011 has 2 divisors, whose sum is σ = 222099012. Its totient is φ = 222099010.

The previous prime is 222099001. The next prime is 222099071. The reversal of 222099011 is 110990222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222099011 - 2²² = 217904707 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_12231791 and since 222099011 and 12231791 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (222099001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111049505 + 111049506.

It is an arithmetic number, because the mean of its divisors is an integer number (111049506).

Almost surely, 2^222099011 is an apocalyptic number.

222099011 is a deficient number, since it is larger than the sum of its proper divisors (1).

222099011 is an equidigital number, since it uses as much as digits as its factorization.

222099011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 222099011 is about 14902.9866469778. The cubic root of 222099011 is about 605.5948987571.

The spelling of 222099011 in words is "two hundred twenty-two million, ninety-nine thousand, eleven".