20221211109 has 8 divisors (see below), whose sum is σ = 29412670752. Its totient is φ = 12255279440.

The previous prime is 20221211083. The next prime is 20221211113. The reversal of 20221211109 is 90111212202.

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 20221211109 - 2²⁰ = 20220162533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221211159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306381954 + ... + 306382019.

It is an arithmetic number, because the mean of its divisors is an integer number (3676583844).

Almost surely, 2^20221211109 is an apocalyptic number.

It is an amenable number.

20221211109 is a deficient number, since it is larger than the sum of its proper divisors (9191459643).

20221211109 is a wasteful number, since it uses less digits than its factorization.

20221211109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612763987.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 20221211109 in words is "twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred nine".