212100022103 has 4 divisors (see below), whose sum is σ = 212147233368. Its totient is φ = 212052810840.

The previous prime is 212100022061. The next prime is 212100022117. The reversal of 212100022103 is 301220001212.

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 212100022103 - 2¹⁰ = 212100021079 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 (212100022133) 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, 23598893 + ... + 23607878.

It is an arithmetic number, because the mean of its divisors is an integer number (53036808342).

Almost surely, 2^212100022103 is an apocalyptic number.

212100022103 is a deficient number, since it is larger than the sum of its proper divisors (47211265).

212100022103 is an equidigital number, since it uses as much as digits as its factorization.

212100022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47211264.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212100022103 its reverse (301220001212), we get a palindrome (513320023315).

The spelling of 212100022103 in words is "two hundred twelve billion, one hundred million, twenty-two thousand, one hundred three".