1312111522226 has 8 divisors (see below), whose sum is σ = 1969271140224. Its totient is φ = 655687808820.

The previous prime is 1312111522213. The next prime is 1312111522289. The reversal of 1312111522226 is 6222251112131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183971690 + ... + 183978821.

It is an arithmetic number, because the mean of its divisors is an integer number (246158892528).

Almost surely, 2^{1312111522226} is an apocalyptic number.

1312111522226 is a deficient number, since it is larger than the sum of its proper divisors (657159617998).

1312111522226 is a wasteful number, since it uses less digits than its factorization.

1312111522226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367952296.

The product of its digits is 2880, while the sum is 29.

Adding to 1312111522226 its reverse (6222251112131), we get a palindrome (7534362634357).

The spelling of 1312111522226 in words is "one trillion, three hundred twelve billion, one hundred eleven million, five hundred twenty-two thousand, two hundred twenty-six".