1212168671 has 16 divisors (see below), whose sum is σ = 1415881728. Its totient is φ = 1016215200.

The previous prime is 1212168647. The next prime is 1212168673. The reversal of 1212168671 is 1768612121.

It is not a de Polignac number, because 1212168671 - 2¹⁴ = 1212152287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212168673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117866 + ... + 127736.

It is an arithmetic number, because the mean of its divisors is an integer number (88492608).

Almost surely, 2^1212168671 is an apocalyptic number.

1212168671 is a deficient number, since it is larger than the sum of its proper divisors (203713057).

1212168671 is an equidigital number, since it uses as much as digits as its factorization.

1212168671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262.

The product of its digits is 8064, while the sum is 35.

The square root of 1212168671 is about 34816.2127607240. The cubic root of 1212168671 is about 1066.2384795810.

The spelling of 1212168671 in words is "one billion, two hundred twelve million, one hundred sixty-eight thousand, six hundred seventy-one".