2221345937 has 8 divisors (see below), whose sum is σ = 2250685440. Its totient is φ = 2192037120.

The previous prime is 2221345933. The next prime is 2221345963. The reversal of 2221345937 is 7395431222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221345937 - 2² = 2221345933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221345937.

It is not an unprimeable number, because it can be changed into a prime (2221345933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162737 + ... + 175857.

It is an arithmetic number, because the mean of its divisors is an integer number (281335680).

Almost surely, 2^2221345937 is an apocalyptic number.

It is an amenable number.

2221345937 is a deficient number, since it is larger than the sum of its proper divisors (29339503).

2221345937 is a wasteful number, since it uses less digits than its factorization.

2221345937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15343.

The product of its digits is 90720, while the sum is 38.

The square root of 2221345937 is about 47131.1567543170. The cubic root of 2221345937 is about 1304.7843308056.

The spelling of 2221345937 in words is "two billion, two hundred twenty-one million, three hundred forty-five thousand, nine hundred thirty-seven".