122167281 has 4 divisors (see below), whose sum is σ = 162889712. Its totient is φ = 81444852.

The previous prime is 122167267. The next prime is 122167289. The reversal of 122167281 is 182761221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122167281 - 2⁹ = 122166769 is a prime.

It is a super-2 number, since 2×122167281² = 29849689093865922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122167289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20361211 + ... + 20361216.

It is an arithmetic number, because the mean of its divisors is an integer number (40722428).

Almost surely, 2^122167281 is an apocalyptic number.

It is an amenable number.

122167281 is a deficient number, since it is larger than the sum of its proper divisors (40722431).

122167281 is an equidigital number, since it uses as much as digits as its factorization.

122167281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40722430.

The product of its digits is 2688, while the sum is 30.

The square root of 122167281 is about 11052.9308782784. The cubic root of 122167281 is about 496.1941457820.

The spelling of 122167281 in words is "one hundred twenty-two million, one hundred sixty-seven thousand, two hundred eighty-one".