2221519985 has 8 divisors (see below), whose sum is σ = 2751818496. Its totient is φ = 1719886320.

The previous prime is 2221519981. The next prime is 2221519987. The reversal of 2221519985 is 5899151222.

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

It is not a de Polignac number, because 2221519985 - 2² = 2221519981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221519981) 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, 7166039 + ... + 7166348.

It is an arithmetic number, because the mean of its divisors is an integer number (343977312).

Almost surely, 2^2221519985 is an apocalyptic number.

It is an amenable number.

2221519985 is a deficient number, since it is larger than the sum of its proper divisors (530298511).

2221519985 is a wasteful number, since it uses less digits than its factorization.

2221519985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14332423.

The product of its digits is 129600, while the sum is 44.

The square root of 2221519985 is about 47133.0031400504. The cubic root of 2221519985 is about 1304.8184076189.

The spelling of 2221519985 in words is "two billion, two hundred twenty-one million, five hundred nineteen thousand, nine hundred eighty-five".