122115 has 16 divisors (see below), whose sum is σ = 223488. Its totient is φ = 55776.

The previous prime is 122099. The next prime is 122117. The reversal of 122115 is 511221.

It is not a de Polignac number, because 122115 - 2⁴ = 122099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122115.

It is not an unprimeable number, because it can be changed into a prime (122117) 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, 477 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (13968).

2¹²²¹¹⁵ is an apocalyptic number.

122115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122115 is a deficient number, since it is larger than the sum of its proper divisors (101373).

122115 is a wasteful number, since it uses less digits than its factorization.

122115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its digits is 20, while the sum is 12.

The square root of 122115 is about 349.4495671767. The cubic root of 122115 is about 49.6123354248.

Adding to 122115 its reverse (511221), we get a palindrome (633336).

The spelling of 122115 in words is "one hundred twenty-two thousand, one hundred fifteen".