12212227017 has 24 divisors (see below), whose sum is σ = 18347966208. Its totient is φ = 7818688800.

The previous prime is 12212226973. The next prime is 12212227031. The reversal of 12212227017 is 71072221221.

It is not a de Polignac number, because 12212227017 - 2⁷ = 12212226889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212227817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130518 + ... + 203615.

It is an arithmetic number, because the mean of its divisors is an integer number (764498592).

Almost surely, 2^12212227017 is an apocalyptic number.

It is an amenable number.

12212227017 is a deficient number, since it is larger than the sum of its proper divisors (6135739191).

12212227017 is a wasteful number, since it uses less digits than its factorization.

12212227017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334301 (or 334298 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

Adding to 12212227017 its reverse (71072221221), we get a palindrome (83284448238).

The spelling of 12212227017 in words is "twelve billion, two hundred twelve million, two hundred twenty-seven thousand, seventeen".