212021102203 has 4 divisors (see below), whose sum is σ = 212481018288. Its totient is φ = 211561186120.

The previous prime is 212021102173. The next prime is 212021102219. The reversal of 212021102203 is 302201120212.

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 212021102203 - 2¹³ = 212021094011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021102233) 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, 229957351 + ... + 229958272.

It is an arithmetic number, because the mean of its divisors is an integer number (53120254572).

Almost surely, 2^212021102203 is an apocalyptic number.

212021102203 is a deficient number, since it is larger than the sum of its proper divisors (459916085).

212021102203 is an equidigital number, since it uses as much as digits as its factorization.

212021102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459916084.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212021102203 its reverse (302201120212), we get a palindrome (514222222415).

The spelling of 212021102203 in words is "two hundred twelve billion, twenty-one million, one hundred two thousand, two hundred three".