121167138867 has 8 divisors (see below), whose sum is σ = 163124692224. Its totient is φ = 79993839048.

The previous prime is 121167138823. The next prime is 121167138889. The reversal of 121167138867 is 768831761121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121167138867 - 2⁷ = 121167138739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121167118867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196063023 + ... + 196063640.

It is an arithmetic number, because the mean of its divisors is an integer number (20390586528).

Almost surely, 2^121167138867 is an apocalyptic number.

121167138867 is a deficient number, since it is larger than the sum of its proper divisors (41957553357).

121167138867 is a wasteful number, since it uses less digits than its factorization.

121167138867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392126769.

The product of its digits is 677376, while the sum is 51.

Adding to 121167138867 its reverse (768831761121), we get a palindrome (889998899988).

The spelling of 121167138867 in words is "one hundred twenty-one billion, one hundred sixty-seven million, one hundred thirty-eight thousand, eight hundred sixty-seven".