212021122203 has 96 divisors (see below), whose sum is σ = 359339355648. Its totient is φ = 119168755200.

The previous prime is 212021122177. The next prime is 212021122259. The reversal of 212021122203 is 302221120212.

It is not a de Polignac number, because 212021122203 - 2⁵ = 212021122171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212021122003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15210225 + ... + 15224157.

It is an arithmetic number, because the mean of its divisors is an integer number (3743118288).

Almost surely, 2^212021122203 is an apocalyptic number.

212021122203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212021122203 is a deficient number, since it is larger than the sum of its proper divisors (147318233445).

212021122203 is a wasteful number, since it uses less digits than its factorization.

212021122203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14177 (or 14174 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212021122203 its reverse (302221120212), we get a palindrome (514242242415).

The spelling of 212021122203 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred three".