212021113203 has 12 divisors (see below), whose sum is σ = 310447962760. Its totient is φ = 139411142496.

The previous prime is 212021113193. The next prime is 212021113223. The reversal of 212021113203 is 302311120212.

It is not a de Polignac number, because 212021113203 - 2¹³ = 212021105011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021113223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161354833 + ... + 161356146.

Almost surely, 2^212021113203 is an apocalyptic number.

212021113203 is a deficient number, since it is larger than the sum of its proper divisors (98426849557).

212021113203 is a wasteful number, since it uses less digits than its factorization.

212021113203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322711058 (or 322711055 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212021113203 its reverse (302311120212), we get a palindrome (514332233415).

The spelling of 212021113203 in words is "two hundred twelve billion, twenty-one million, one hundred thirteen thousand, two hundred three".