210122103 has 4 divisors (see below), whose sum is σ = 280162808. Its totient is φ = 140081400.

The previous prime is 210122071. The next prime is 210122119. The reversal of 210122103 is 301221012.

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

It is not a de Polignac number, because 210122103 - 2⁵ = 210122071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122153) 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, 35020348 + ... + 35020353.

It is an arithmetic number, because the mean of its divisors is an integer number (70040702).

Almost surely, 2^210122103 is an apocalyptic number.

210122103 is a deficient number, since it is larger than the sum of its proper divisors (70040705).

210122103 is an equidigital number, since it uses as much as digits as its factorization.

210122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70040704.

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

The square root of 210122103 is about 14495.5890877191. The cubic root of 210122103 is about 594.5073746545.

Adding to 210122103 its reverse (301221012), we get a palindrome (511343115).

The spelling of 210122103 in words is "two hundred ten million, one hundred twenty-two thousand, one hundred three".