2221502115 has 64 divisors (see below), whose sum is σ = 4329068544. Its totient is φ = 949598208.

The previous prime is 2221502113. The next prime is 2221502123. The reversal of 2221502115 is 5112051222.

It is not a de Polignac number, because 2221502115 - 2¹ = 2221502113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2221502091 and 2221502100.

It is not an unprimeable number, because it can be changed into a prime (2221502111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 276282 + ... + 284208.

It is an arithmetic number, because the mean of its divisors is an integer number (67641696).

Almost surely, 2^2221502115 is an apocalyptic number.

2221502115 is a deficient number, since it is larger than the sum of its proper divisors (2107566429).

2221502115 is a wasteful number, since it uses less digits than its factorization.

2221502115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2221502115 is about 47132.8135697414. The cubic root of 2221502115 is about 1304.8149089382.

Adding to 2221502115 its reverse (5112051222), we get a palindrome (7333553337).

The spelling of 2221502115 in words is "two billion, two hundred twenty-one million, five hundred two thousand, one hundred fifteen".