22143433349 has 2 divisors, whose sum is σ = 22143433350. Its totient is φ = 22143433348.

The previous prime is 22143433289. The next prime is 22143433357. The reversal of 22143433349 is 94333434122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19159542724 + 2983890625 = 138418^2 + 54625^2 .

It is a cyclic number.

It is not a de Polignac number, because 22143433349 - 2²⁰ = 22142384773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22143430349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071716674 + 11071716675.

It is an arithmetic number, because the mean of its divisors is an integer number (11071716675).

Almost surely, 2^22143433349 is an apocalyptic number.

It is an amenable number.

22143433349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143433349 is an equidigital number, since it uses as much as digits as its factorization.

22143433349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 38.

The spelling of 22143433349 in words is "twenty-two billion, one hundred forty-three million, four hundred thirty-three thousand, three hundred forty-nine".