122100003 has 24 divisors (see below), whose sum is σ = 179084880. Its totient is φ = 80156160.

The previous prime is 122099993. The next prime is 122100007. The reversal of 122100003 is 300001221.

It is a happy number.

It is not a de Polignac number, because 122100003 - 2¹⁰ = 122098979 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (122100007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 214303 + ... + 214871.

It is an arithmetic number, because the mean of its divisors is an integer number (7461870).

Almost surely, 2^122100003 is an apocalyptic number.

122100003 is a deficient number, since it is larger than the sum of its proper divisors (56984877).

122100003 is a wasteful number, since it uses less digits than its factorization.

122100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 896 counting only the distinct ones).

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

The square root of 122100003 is about 11049.8870129970. The cubic root of 122100003 is about 496.1030437035.

Adding to 122100003 its reverse (300001221), we get a palindrome (422101224).

The spelling of 122100003 in words is "one hundred twenty-two million, one hundred thousand, three".