2222221965 has 8 divisors (see below), whose sum is σ = 3555555168. Its totient is φ = 1185185040.

The previous prime is 2222221957. The next prime is 2222221987. The reversal of 2222221965 is 5691222222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2222221965 - 2³ = 2222221957 is a prime.

It is a super-2 number, since 2×2222221965² = 9876540923456922450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74074051 + ... + 74074080.

It is an arithmetic number, because the mean of its divisors is an integer number (444444396).

Almost surely, 2^2222221965 is an apocalyptic number.

It is an amenable number.

2222221965 is a deficient number, since it is larger than the sum of its proper divisors (1333333203).

2222221965 is a wasteful number, since it uses less digits than its factorization.

2222221965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148148139.

The product of its digits is 17280, while the sum is 33.

The square root of 2222221965 is about 47140.4493508494. The cubic root of 2222221965 is about 1304.9558300401.

The spelling of 2222221965 in words is "two billion, two hundred twenty-two million, two hundred twenty-one thousand, nine hundred sixty-five".