20221103091 has 32 divisors (see below), whose sum is σ = 31473474048. Its totient is φ = 11308377600.

The previous prime is 20221103053. The next prime is 20221103113. The reversal of 20221103091 is 19030112202.

It is not a de Polignac number, because 20221103091 - 2¹⁴ = 20221086707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20221103011) 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 31 ways as a sum of consecutive naturals, for example, 423660 + ... + 468966.

It is an arithmetic number, because the mean of its divisors is an integer number (983546064).

Almost surely, 2^20221103091 is an apocalyptic number.

20221103091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20221103091 is a deficient number, since it is larger than the sum of its proper divisors (11252370957).

20221103091 is a wasteful number, since it uses less digits than its factorization.

20221103091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45771.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20221103091 its reverse (19030112202), we get a palindrome (39251215293).

The spelling of 20221103091 in words is "twenty billion, two hundred twenty-one million, one hundred three thousand, ninety-one".