2122221109 has 8 divisors (see below), whose sum is σ = 2239375680. Its totient is φ = 2007140256.

The previous prime is 2122221083. The next prime is 2122221133. The reversal of 2122221109 is 9011222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122221109 - 2⁵ = 2122221077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2122221109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122221139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516327 + ... + 520420.

It is an arithmetic number, because the mean of its divisors is an integer number (279921960).

Almost surely, 2^2122221109 is an apocalyptic number.

It is an amenable number.

2122221109 is a deficient number, since it is larger than the sum of its proper divisors (117154571).

2122221109 is a wasteful number, since it uses less digits than its factorization.

2122221109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036859.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2122221109 is about 46067.5711211260. The cubic root of 2122221109 is about 1285.0801342931.

The spelling of 2122221109 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred nine".