2221210099 has 4 divisors (see below), whose sum is σ = 2233482160. Its totient is φ = 2208938040.

The previous prime is 2221210091. The next prime is 2221210127. The reversal of 2221210099 is 9900121222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9900121222 = 2 ⋅4950060611.

It is a cyclic number.

It is not a de Polignac number, because 2221210099 - 2³ = 2221210091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221210091) 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 3 ways as a sum of consecutive naturals, for example, 6135759 + ... + 6136120.

It is an arithmetic number, because the mean of its divisors is an integer number (558370540).

Almost surely, 2^2221210099 is an apocalyptic number.

2221210099 is a deficient number, since it is larger than the sum of its proper divisors (12272061).

2221210099 is a wasteful number, since it uses less digits than its factorization.

2221210099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12272060.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2221210099 is about 47129.7156685673. The cubic root of 2221210099 is about 1304.7577338817.

The spelling of 2221210099 in words is "two billion, two hundred twenty-one million, two hundred ten thousand, ninety-nine".