12022167172 has 24 divisors (see below), whose sum is σ = 21176883000. Its totient is φ = 5971746816.

The previous prime is 12022167139. The next prime is 12022167173. The reversal of 12022167172 is 27176122021.

It can be written as a sum of positive squares in 4 ways, for example, as 593701956 + 11428465216 = 24366^2 + 106904^2 .

It is not an unprimeable number, because it can be changed into a prime (12022167173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404104 + ... + 432832.

It is an arithmetic number, because the mean of its divisors is an integer number (882370125).

Almost surely, 2^12022167172 is an apocalyptic number.

It is an amenable number.

12022167172 is a deficient number, since it is larger than the sum of its proper divisors (9154715828).

12022167172 is a wasteful number, since it uses less digits than its factorization.

12022167172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29415 (or 29413 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

Adding to 12022167172 its reverse (27176122021), we get a palindrome (39198289193).

The spelling of 12022167172 in words is "twelve billion, twenty-two million, one hundred sixty-seven thousand, one hundred seventy-two".