122771 has 4 divisors (see below), whose sum is σ = 133944. Its totient is φ = 111600.

The previous prime is 122761. The next prime is 122777. The reversal of 122771 is 177221.

122771 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177221 = 11 ⋅16111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122777) 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, 5570 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (33486).

2¹²²⁷⁷¹ is an apocalyptic number.

122771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122771 is a deficient number, since it is larger than the sum of its proper divisors (11173).

122771 is a wasteful number, since it uses less digits than its factorization.

122771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172.

The product of its digits is 196, while the sum is 20.

The square root of 122771 is about 350.3869289799. The cubic root of 122771 is about 49.7010157317.

Adding to 122771 its reverse (177221), we get a palindrome (299992).

The spelling of 122771 in words is "one hundred twenty-two thousand, seven hundred seventy-one", and thus it is an iban number.