215026315226 has 64 divisors (see below), whose sum is σ = 355803072768. Its totient is φ = 97052110848.

The previous prime is 215026315199. The next prime is 215026315303. The reversal of 215026315226 is 622513620512.

It is a super-2 number, since 2×215026315226² (a number of 23 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 24862835 + ... + 24871481.

It is an arithmetic number, because the mean of its divisors is an integer number (5559423012).

Almost surely, 2^215026315226 is an apocalyptic number.

215026315226 is a deficient number, since it is larger than the sum of its proper divisors (140776757542).

215026315226 is a wasteful number, since it uses less digits than its factorization.

215026315226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 215026315226 its reverse (622513620512), we get a palindrome (837539935738).

The spelling of 215026315226 in words is "two hundred fifteen billion, twenty-six million, three hundred fifteen thousand, two hundred twenty-six".