122004420 has 96 divisors (see below), whose sum is σ = 359009280. Its totient is φ = 30898560.

The previous prime is 122004419. The next prime is 122004451. The reversal of 122004420 is 24400221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122004420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290971 + ... + 291389.

It is an arithmetic number, because the mean of its divisors is an integer number (3739680).

Almost surely, 2^122004420 is an apocalyptic number.

122004420 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 122004420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179504640).

122004420 is an abundant number, since it is smaller than the sum of its proper divisors (237004860).

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

122004420 is a wasteful number, since it uses less digits than its factorization.

122004420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 122004420 is about 11045.5610993738. The cubic root of 122004420 is about 495.9735558656.

Adding to 122004420 its reverse (24400221), we get a palindrome (146404641).

The spelling of 122004420 in words is "one hundred twenty-two million, four thousand, four hundred twenty".