122003112 has 128 divisors (see below), whose sum is σ = 384445440. Its totient is φ = 31342080.

The previous prime is 122003107. The next prime is 122003113. The reversal of 122003112 is 211300221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (122003113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197428 + ... + 198044.

It is an arithmetic number, because the mean of its divisors is an integer number (3003480).

Almost surely, 2^122003112 is an apocalyptic number.

122003112 is a gapful number since it is divisible by the number (12) 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 122003112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192222720).

122003112 is an abundant number, since it is smaller than the sum of its proper divisors (262442328).

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

122003112 is a wasteful number, since it uses less digits than its factorization.

122003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122003112 is about 11045.5018899098. The cubic root of 122003112 is about 495.9717834278.

Adding to 122003112 its reverse (211300221), we get a palindrome (333303333).

The spelling of 122003112 in words is "one hundred twenty-two million, three thousand, one hundred twelve".