5111221311233 has 2 divisors, whose sum is σ = 5111221311234. Its totient is φ = 5111221311232.

The previous prime is 5111221311223. The next prime is 5111221311283. The reversal of 5111221311233 is 3321131221115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4442854564864 + 668366746369 = 2107808^2 + 817537^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111221311233 - 2⁸ = 5111221310977 is a prime.

It is a super-2 number, since 2×5111221311233² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5111221311223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555610655616 + 2555610655617.

It is an arithmetic number, because the mean of its divisors is an integer number (2555610655617).

Almost surely, 2^{5111221311233} is an apocalyptic number.

It is an amenable number.

5111221311233 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111221311233 is an equidigital number, since it uses as much as digits as its factorization.

5111221311233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

Adding to 5111221311233 its reverse (3321131221115), we get a palindrome (8432352532348).

The spelling of 5111221311233 in words is "five trillion, one hundred eleven billion, two hundred twenty-one million, three hundred eleven thousand, two hundred thirty-three".