2215122505 has 16 divisors (see below), whose sum is σ = 2809785600. Its totient is φ = 1671788160.

The previous prime is 2215122499. The next prime is 2215122517. The reversal of 2215122505 is 5052215122.

It is not a de Polignac number, because 2215122505 - 2⁵ = 2215122473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2215122505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26076 + ... + 71485.

It is an arithmetic number, because the mean of its divisors is an integer number (175611600).

Almost surely, 2^2215122505 is an apocalyptic number.

It is an amenable number.

2215122505 is a deficient number, since it is larger than the sum of its proper divisors (594663095).

2215122505 is a wasteful number, since it uses less digits than its factorization.

2215122505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97824.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2215122505 is about 47065.0879633726. The cubic root of 2215122505 is about 1303.5646751007.

Adding to 2215122505 its reverse (5052215122), we get a palindrome (7267337627).

The spelling of 2215122505 in words is "two billion, two hundred fifteen million, one hundred twenty-two thousand, five hundred five".