22122101213 has 6 divisors (see below), whose sum is σ = 22326930234. Its totient is φ = 21919134384.

The previous prime is 22122101161. The next prime is 22122101231. The reversal of 22122101213 is 31210122122.

It can be written as a sum of positive squares in 3 ways, for example, as 11513719204 + 10608382009 = 107302^2 + 102997^2 .

It is not a de Polignac number, because 22122101213 - 2⁶ = 22122101149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22122101191 and 22122101200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122100213) 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 5 ways as a sum of consecutive naturals, for example, 919106 + ... + 942867.

It is an arithmetic number, because the mean of its divisors is an integer number (3721155039).

Almost surely, 2^22122101213 is an apocalyptic number.

It is an amenable number.

22122101213 is a deficient number, since it is larger than the sum of its proper divisors (204829021).

22122101213 is an equidigital number, since it uses as much as digits as its factorization.

22122101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862191 (or 1862082 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22122101213 its reverse (31210122122), we get a palindrome (53332223335).

The spelling of 22122101213 in words is "twenty-two billion, one hundred twenty-two million, one hundred one thousand, two hundred thirteen".