965721222 has 24 divisors (see below), whose sum is σ = 2101087560. Its totient is φ = 320569920.

The previous prime is 965721221. The next prime is 965721223. The reversal of 965721222 is 222127569.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (965721221) and next prime (965721223).

It is a super-3 number, since 3×965721222³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965721221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106972 + ... + 115647.

It is an arithmetic number, because the mean of its divisors is an integer number (87545315).

Almost surely, 2^965721222 is an apocalyptic number.

965721222 is an abundant number, since it is smaller than the sum of its proper divisors (1135366338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

965721222 is a wasteful number, since it uses less digits than its factorization.

965721222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222868 (or 222865 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 965721222 is about 31076.0554446667. The cubic root of 965721222 is about 988.4406366350.

The spelling of 965721222 in words is "nine hundred sixty-five million, seven hundred twenty-one thousand, two hundred twenty-two".