12271219465 has 16 divisors (see below), whose sum is σ = 14924083968. Its totient is φ = 9685443456.

The previous prime is 12271219453. The next prime is 12271219537. The reversal of 12271219465 is 56491217221.

It is a cyclic number.

It is not a de Polignac number, because 12271219465 - 2¹¹ = 12271217417 is a prime.

It is a Duffinian number.

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, 56704 + ... + 166606.

It is an arithmetic number, because the mean of its divisors is an integer number (932755248).

Almost surely, 2^12271219465 is an apocalyptic number.

It is an amenable number.

12271219465 is a deficient number, since it is larger than the sum of its proper divisors (2652864503).

12271219465 is a wasteful number, since it uses less digits than its factorization.

12271219465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110208.

The product of its digits is 60480, while the sum is 40.

The spelling of 12271219465 in words is "twelve billion, two hundred seventy-one million, two hundred nineteen thousand, four hundred sixty-five".