12217583475 has 36 divisors (see below), whose sum is σ = 21889244832. Its totient is φ = 6514200000.

The previous prime is 12217583467. The next prime is 12217583501. The reversal of 12217583475 is 57438571221.

12217583475 is a `hidden beast` number, since 1 + 2 + 2 + 175 + 8 + 3 + 475 = 666.

It is not a de Polignac number, because 12217583475 - 2³ = 12217583467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12217583475.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1232790 + ... + 1242660.

Almost surely, 2^12217583475 is an apocalyptic number.

12217583475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12217583475 is a deficient number, since it is larger than the sum of its proper divisors (9671661357).

12217583475 is a wasteful number, since it uses less digits than its factorization.

12217583475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15388 (or 15380 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The spelling of 12217583475 in words is "twelve billion, two hundred seventeen million, five hundred eighty-three thousand, four hundred seventy-five".