22213321121 has 2 divisors, whose sum is σ = 22213321122. Its totient is φ = 22213321120.

The previous prime is 22213321043. The next prime is 22213321129. The reversal of 22213321121 is 12112331222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13616322721 + 8596998400 = 116689^2 + 92720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22213321121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22213321093 and 22213321102.

It is not a weakly prime, because it can be changed into another prime (22213321129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106660560 + 11106660561.

It is an arithmetic number, because the mean of its divisors is an integer number (11106660561).

Almost surely, 2^22213321121 is an apocalyptic number.

It is an amenable number.

22213321121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22213321121 is an equidigital number, since it uses as much as digits as its factorization.

22213321121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

Adding to 22213321121 its reverse (12112331222), we get a palindrome (34325652343).

The spelling of 22213321121 in words is "twenty-two billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred twenty-one".