122003100 has 54 divisors (see below), whose sum is σ = 382414760. Its totient is φ = 32533920.

The previous prime is 122003093. The next prime is 122003107. The reversal of 122003100 is 1300221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122003093) and next prime (122003107).

It is a super-2 number, since 2×122003100² = 29769512819220000, which contains 22 as substring.

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 (122003107) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66880 + ... + 68679.

Almost surely, 2^122003100 is an apocalyptic number.

122003100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122003100 is an abundant number, since it is smaller than the sum of its proper divisors (260411660).

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

122003100 is a wasteful number, since it uses less digits than its factorization.

122003100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135579 (or 135569 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 122003100 is about 11045.5013467022. The cubic root of 122003100 is about 495.9717671668.

Adding to 122003100 its reverse (1300221), we get a palindrome (123303321).

The spelling of 122003100 in words is "one hundred twenty-two million, three thousand, one hundred".