2221365946 has 8 divisors (see below), whose sum is σ = 3439534464. Its totient is φ = 1074854460.

The previous prime is 2221365917. The next prime is 2221365947. The reversal of 2221365946 is 6495631222.

2221365946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221365899 and 2221365908.

It is not an unprimeable number, because it can be changed into a prime (2221365947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17914180 + ... + 17914303.

It is an arithmetic number, because the mean of its divisors is an integer number (429941808).

Almost surely, 2^2221365946 is an apocalyptic number.

2221365946 is a deficient number, since it is larger than the sum of its proper divisors (1218168518).

2221365946 is a wasteful number, since it uses less digits than its factorization.

2221365946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35828516.

The product of its digits is 155520, while the sum is 40.

The square root of 2221365946 is about 47131.3690231888. The cubic root of 2221365946 is about 1304.7882484532.

The spelling of 2221365946 in words is "two billion, two hundred twenty-one million, three hundred sixty-five thousand, nine hundred forty-six".