1222305016 has 8 divisors (see below), whose sum is σ = 2291821920. Its totient is φ = 611152504.

The previous prime is 1222305013. The next prime is 1222305043. The reversal of 1222305016 is 6105032221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222305011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76394056 + ... + 76394071.

It is an arithmetic number, because the mean of its divisors is an integer number (286477740).

Almost surely, 2^1222305016 is an apocalyptic number.

It is an amenable number.

1222305016 is a deficient number, since it is larger than the sum of its proper divisors (1069516904).

1222305016 is a wasteful number, since it uses less digits than its factorization.

1222305016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152788133 (or 152788129 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1222305016 is about 34961.4790304987. The cubic root of 1222305016 is about 1069.2022516248.

Adding to 1222305016 its reverse (6105032221), we get a palindrome (7327337237).

The spelling of 1222305016 in words is "one billion, two hundred twenty-two million, three hundred five thousand, sixteen".