2201965881 has 16 divisors (see below), whose sum is σ = 3072466944. Its totient is φ = 1400090384.

The previous prime is 2201965837. The next prime is 2201965897. The reversal of 2201965881 is 1885691022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2201965881 - 2¹⁰ = 2201964857 is a prime.

It is a super-2 number, since 2×2201965881² = 9697307482176212322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2201965811) 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 15 ways as a sum of consecutive naturals, for example, 22041 + ... + 69926.

It is an arithmetic number, because the mean of its divisors is an integer number (192029184).

Almost surely, 2^2201965881 is an apocalyptic number.

It is an amenable number.

2201965881 is a deficient number, since it is larger than the sum of its proper divisors (870501063).

2201965881 is a wasteful number, since it uses less digits than its factorization.

2201965881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92340.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 2201965881 is about 46925.1092806399. The cubic root of 2201965881 is about 1300.9787266725.

The spelling of 2201965881 in words is "two billion, two hundred one million, nine hundred sixty-five thousand, eight hundred eighty-one".