22110213121 has 4 divisors (see below), whose sum is σ = 22206764500. Its totient is φ = 22013661744.

The previous prime is 22110213119. The next prime is 22110213187. The reversal of 22110213121 is 12131201122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14088503025 + 8021710096 = 118695^2 + 89564^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110213121 - 2¹ = 22110213119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22110213095 and 22110213104.

It is not an unprimeable number, because it can be changed into a prime (22110213221) 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, 48275346 + ... + 48275803.

It is an arithmetic number, because the mean of its divisors is an integer number (5551691125).

Almost surely, 2^22110213121 is an apocalyptic number.

It is an amenable number.

22110213121 is a deficient number, since it is larger than the sum of its proper divisors (96551379).

22110213121 is an equidigital number, since it uses as much as digits as its factorization.

22110213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96551378.

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

Adding to 22110213121 its reverse (12131201122), we get a palindrome (34241414243).

The spelling of 22110213121 in words is "twenty-two billion, one hundred ten million, two hundred thirteen thousand, one hundred twenty-one".