122040 has 64 divisors (see below), whose sum is σ = 410400. Its totient is φ = 32256.

The previous prime is 122039. The next prime is 122041. The reversal of 122040 is 40221.

It is an interprime number because it is at equal distance from previous prime (122039) and next prime (122041).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122041) 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, 1024 + ... + 1136.

2¹²²⁰⁴⁰ is an apocalyptic number.

122040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205200).

122040 is an abundant number, since it is smaller than the sum of its proper divisors (288360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122040 is a wasteful number, since it uses less digits than its factorization.

122040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 122040 is about 349.3422390722. The cubic root of 122040 is about 49.6021764567.

Adding to 122040 its reverse (40221), we get a palindrome (162261).

The spelling of 122040 in words is "one hundred twenty-two thousand, forty", and thus it is an iban number.