11332231222121 has 2 divisors, whose sum is σ = 11332231222122. Its totient is φ = 11332231222120.

The previous prime is 11332231222087. The next prime is 11332231222243. The reversal of 11332231222121 is 12122213223311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9733432824025 + 1598798398096 = 3119845^2 + 1264436^2 .

It is an emirp because it is prime and its reverse (12122213223311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11332231222121 is a prime.

It is a super-2 number, since 2×11332231222121² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11332231242121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5666115611060 + 5666115611061.

It is an arithmetic number, because the mean of its divisors is an integer number (5666115611061).

Almost surely, 2^{11332231222121} is an apocalyptic number.

It is an amenable number.

11332231222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11332231222121 is an equidigital number, since it uses as much as digits as its factorization.

11332231222121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

Adding to 11332231222121 its reverse (12122213223311), we get a palindrome (23454444445432).

The spelling of 11332231222121 in words is "eleven trillion, three hundred thirty-two billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-one".