2221050247 has 4 divisors (see below), whose sum is σ = 2391900280. Its totient is φ = 2050200216.

The previous prime is 2221050241. The next prime is 2221050313. The reversal of 2221050247 is 7420501222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221050247 is a prime.

It is a super-2 number, since 2×2221050247² = 9866128399397522018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221050241) 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, 85424997 + ... + 85425022.

It is an arithmetic number, because the mean of its divisors is an integer number (597975070).

Almost surely, 2^2221050247 is an apocalyptic number.

2221050247 is a deficient number, since it is larger than the sum of its proper divisors (170850033).

2221050247 is a wasteful number, since it uses less digits than its factorization.

2221050247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170850032.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 2221050247 is about 47128.0197653158. The cubic root of 2221050247 is about 1304.7264336553.

Adding to 2221050247 its reverse (7420501222), we get a palindrome (9641551469).

The spelling of 2221050247 in words is "two billion, two hundred twenty-one million, fifty thousand, two hundred forty-seven".