22032111121 has 4 divisors (see below), whose sum is σ = 22041382372. Its totient is φ = 22022839872.

The previous prime is 22032111109. The next prime is 22032111149. The reversal of 22032111121 is 12111123022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12111123022 = 2 ⋅6055561511.

It can be written as a sum of positive squares in 2 ways, for example, as 6482021121 + 15550090000 = 80511^2 + 124700^2 .

It is a cyclic number.

It is not a de Polignac number, because 22032111121 - 2²¹ = 22030013969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22032111095 and 22032111104.

It is not an unprimeable number, because it can be changed into a prime (22032111221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4632060 + ... + 4636813.

It is an arithmetic number, because the mean of its divisors is an integer number (5510345593).

Almost surely, 2^22032111121 is an apocalyptic number.

It is an amenable number.

22032111121 is a deficient number, since it is larger than the sum of its proper divisors (9271251).

22032111121 is an equidigital number, since it uses as much as digits as its factorization.

22032111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9271250.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 22032111121 its reverse (12111123022), we get a palindrome (34143234143).

The spelling of 22032111121 in words is "twenty-two billion, thirty-two million, one hundred eleven thousand, one hundred twenty-one".