122100203 has 4 divisors (see below), whose sum is σ = 122849448. Its totient is φ = 121350960.

The previous prime is 122100193. The next prime is 122100211. The reversal of 122100203 is 302001221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122100203 - 2¹⁶ = 122034667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122100233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374378 + ... + 374703.

It is an arithmetic number, because the mean of its divisors is an integer number (30712362).

Almost surely, 2^122100203 is an apocalyptic number.

122100203 is a deficient number, since it is larger than the sum of its proper divisors (749245).

122100203 is an equidigital number, since it uses as much as digits as its factorization.

122100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749244.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 122100203 is about 11049.8960628596. The cubic root of 122100203 is about 496.1033145759.

Adding to 122100203 its reverse (302001221), we get a palindrome (424101424).

The spelling of 122100203 in words is "one hundred twenty-two million, one hundred thousand, two hundred three".