1311225227 has 8 divisors (see below), whose sum is σ = 1460781840. Its totient is φ = 1168624800.

The previous prime is 1311225217. The next prime is 1311225233. The reversal of 1311225227 is 7225221131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311225227 - 2¹⁶ = 1311159691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311225196 and 1311225205.

It is not an unprimeable number, because it can be changed into a prime (1311225217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1738649 + ... + 1739402.

It is an arithmetic number, because the mean of its divisors is an integer number (182597730).

Almost surely, 2^1311225227 is an apocalyptic number.

1311225227 is a deficient number, since it is larger than the sum of its proper divisors (149556613).

1311225227 is a wasteful number, since it uses less digits than its factorization.

1311225227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478093.

The product of its digits is 1680, while the sum is 26.

The square root of 1311225227 is about 36210.8440525763. The cubic root of 1311225227 is about 1094.5252007688.

Adding to 1311225227 its reverse (7225221131), we get a palindrome (8536446358).

The spelling of 1311225227 in words is "one billion, three hundred eleven million, two hundred twenty-five thousand, two hundred twenty-seven".