122156 has 6 divisors (see below), whose sum is σ = 213780. Its totient is φ = 61076.

The previous prime is 122149. The next prime is 122167. The reversal of 122156 is 651221.

It is an unprimeable number.

122156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15266 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (35630).

2¹²²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

122156 is a deficient number, since it is larger than the sum of its proper divisors (91624).

122156 is a wasteful number, since it uses less digits than its factorization.

122156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30543 (or 30541 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 122156 is about 349.5082259404. The cubic root of 122156 is about 49.6178872357.

Adding to 122156 its reverse (651221), we get a palindrome (773377).

It can be divided in two parts, 12215 and 6, that added together give a palindrome (12221).

The spelling of 122156 in words is "one hundred twenty-two thousand, one hundred fifty-six".