212021003223 has 64 divisors (see below), whose sum is σ = 338971392000. Its totient is φ = 130496002560.

The previous prime is 212021003219. The next prime is 212021003237. The reversal of 212021003223 is 322300120212.

It is not a de Polignac number, because 212021003223 - 2² = 212021003219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021003196 and 212021003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021003263) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6468865 + ... + 6501557.

It is an arithmetic number, because the mean of its divisors is an integer number (5296428000).

Almost surely, 2^212021003223 is an apocalyptic number.

212021003223 is a deficient number, since it is larger than the sum of its proper divisors (126950388777).

212021003223 is a wasteful number, since it uses less digits than its factorization.

212021003223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32989 (or 32983 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212021003223 its reverse (322300120212), we get a palindrome (534321123435).

The spelling of 212021003223 in words is "two hundred twelve billion, twenty-one million, three thousand, two hundred twenty-three".