12220021091 has 8 divisors (see below), whose sum is σ = 12513876144. Its totient is φ = 11926605600.

The previous prime is 12220021067. The next prime is 12220021109. The reversal of 12220021091 is 19012002221.

It is a happy number.

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 12220021091 - 2²² = 12215826787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220021001) 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, 53276 + ... + 165161.

It is an arithmetic number, because the mean of its divisors is an integer number (1564234518).

Almost surely, 2^12220021091 is an apocalyptic number.

12220021091 is a deficient number, since it is larger than the sum of its proper divisors (293855053).

12220021091 is a wasteful number, since it uses less digits than its factorization.

12220021091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219781.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 12220021091 in words is "twelve billion, two hundred twenty million, twenty-one thousand, ninety-one".