1215004313226 has 32 divisors (see below), whose sum is σ = 2688255392256. Its totient is φ = 362997446000.

The previous prime is 1215004313209. The next prime is 1215004313231. The reversal of 1215004313226 is 6223134005121.

It is a junction number, because it is equal to n+sod(n) for n = 1215004313193 and 1215004313202.

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, 129637260 + ... + 129646631.

It is an arithmetic number, because the mean of its divisors is an integer number (84007981008).

Almost surely, 2^{1215004313226} is an apocalyptic number.

1215004313226 is an abundant number, since it is smaller than the sum of its proper divisors (1473251079030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215004313226 is a wasteful number, since it uses less digits than its factorization.

1215004313226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259283978.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1215004313226 its reverse (6223134005121), we get a palindrome (7438138318347).

The spelling of 1215004313226 in words is "one trillion, two hundred fifteen billion, four million, three hundred thirteen thousand, two hundred twenty-six".