99911422 has 16 divisors (see below), whose sum is σ = 162997632. Its totient is φ = 45655200.

The previous prime is 99911417. The next prime is 99911423. The reversal of 99911422 is 22411999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99911423) 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 in 7 ways as a sum of consecutive naturals, for example, 16398 + ... + 21649.

It is an arithmetic number, because the mean of its divisors is an integer number (10187352).

Almost surely, 2^99911422 is an apocalyptic number.

99911422 is a deficient number, since it is larger than the sum of its proper divisors (63086210).

99911422 is a wasteful number, since it uses less digits than its factorization.

99911422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38163.

The product of its digits is 11664, while the sum is 37.

The square root of 99911422 is about 9995.5701188076. The cubic root of 99911422 is about 464.0217953248.

It can be divided in two parts, 999 and 11422, that added together give a palindrome (12421).

The spelling of 99911422 in words is "ninety-nine million, nine hundred eleven thousand, four hundred twenty-two".