99220105 has 4 divisors (see below), whose sum is σ = 119064132. Its totient is φ = 79376080.

The previous prime is 99220073. The next prime is 99220117. The reversal of 99220105 is 50102299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50102299 = 13 ⋅3854023.

It can be written as a sum of positive squares in 2 ways, for example, as 52475536 + 46744569 = 7244^2 + 6837^2 .

It is not a de Polignac number, because 99220105 - 2⁵ = 99220073 is a prime.

It is a super-2 number, since 2×99220105² = 19689258472422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9922006 + ... + 9922015.

It is an arithmetic number, because the mean of its divisors is an integer number (29766033).

Almost surely, 2^99220105 is an apocalyptic number.

It is an amenable number.

99220105 is a deficient number, since it is larger than the sum of its proper divisors (19844027).

99220105 is a wasteful number, since it uses less digits than its factorization.

99220105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19844026.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 99220105 is about 9960.9289225453. The cubic root of 99220105 is about 462.9490821885.

The spelling of 99220105 in words is "ninety-nine million, two hundred twenty thousand, one hundred five".