33331221223 has 2 divisors, whose sum is σ = 33331221224. Its totient is φ = 33331221222.

The previous prime is 33331221169. The next prime is 33331221263. The reversal of 33331221223 is 32212213333.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33331221223 - 2²⁵ = 33297666791 is a prime.

It is a super-2 number, since 2×33331221223² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33331221263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16665610611 + 16665610612.

It is an arithmetic number, because the mean of its divisors is an integer number (16665610612).

Almost surely, 2^33331221223 is an apocalyptic number.

33331221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

33331221223 is an equidigital number, since it uses as much as digits as its factorization.

33331221223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 25.

Adding to 33331221223 its reverse (32212213333), we get a palindrome (65543434556).

The spelling of 33331221223 in words is "thirty-three billion, three hundred thirty-one million, two hundred twenty-one thousand, two hundred twenty-three".