212002228 has 12 divisors (see below), whose sum is σ = 390530560. Its totient is φ = 100422072.

The previous prime is 212002199. The next prime is 212002229. The reversal of 212002228 is 822200212.

212002228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002229) 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, 1394676 + ... + 1394827.

Almost surely, 2^212002228 is an apocalyptic number.

It is an amenable number.

212002228 is a deficient number, since it is larger than the sum of its proper divisors (178528332).

212002228 is a wasteful number, since it uses less digits than its factorization.

212002228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789526 (or 2789524 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 212002228 is about 14560.2962881941. The cubic root of 212002228 is about 596.2752845983.

The spelling of 212002228 in words is "two hundred twelve million, two thousand, two hundred twenty-eight".