22215210715 has 16 divisors (see below), whose sum is σ = 27065877696. Its totient is φ = 17501184000.

The previous prime is 22215210709. The next prime is 22215210733. The reversal of 22215210715 is 51701251222.

It is not a de Polignac number, because 22215210715 - 2¹⁹ = 22214686427 is a prime.

It is a super-2 number, since 2×22215210715² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 186490 + ... + 281440.

It is an arithmetic number, because the mean of its divisors is an integer number (1691617356).

Almost surely, 2^22215210715 is an apocalyptic number.

22215210715 is a deficient number, since it is larger than the sum of its proper divisors (4850666981).

22215210715 is an equidigital number, since it uses as much as digits as its factorization.

22215210715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95670.

The product of its (nonzero) digits is 2800, while the sum is 28.

Adding to 22215210715 its reverse (51701251222), we get a palindrome (73916461937).

The spelling of 22215210715 in words is "twenty-two billion, two hundred fifteen million, two hundred ten thousand, seven hundred fifteen".