2221207015 has 4 divisors (see below), whose sum is σ = 2665448424. Its totient is φ = 1776965608.

The previous prime is 2221207003. The next prime is 2221207039. The reversal of 2221207015 is 5107021222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221207015 - 2¹⁹ = 2220682727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 222120697 + ... + 222120706.

It is an arithmetic number, because the mean of its divisors is an integer number (666362106).

Almost surely, 2^2221207015 is an apocalyptic number.

2221207015 is a deficient number, since it is larger than the sum of its proper divisors (444241409).

2221207015 is an equidigital number, since it uses as much as digits as its factorization.

2221207015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444241408.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 2221207015 is about 47129.6829503446. The cubic root of 2221207015 is about 1304.7571300255.

Adding to 2221207015 its reverse (5107021222), we get a palindrome (7328228237).

The spelling of 2221207015 in words is "two billion, two hundred twenty-one million, two hundred seven thousand, fifteen".