212002028 has 36 divisors (see below), whose sum is σ = 432471312. Its totient is φ = 90669600.

The previous prime is 212002027. The next prime is 212002031. The reversal of 212002028 is 820200212.

212002028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212002028² = 89889719752225568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212001997 and 212002015.

It is not an unprimeable number, because it can be changed into a prime (212002027) 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, 136625 + ... + 138167.

It is an arithmetic number, because the mean of its divisors is an integer number (12013092).

Almost surely, 2^212002028 is an apocalyptic number.

212002028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212002028 is an abundant number, since it is smaller than the sum of its proper divisors (220469284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212002028 is a wasteful number, since it uses less digits than its factorization.

212002028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 212002028 is about 14560.2894202004. The cubic root of 212002028 is about 596.2750970923.

The spelling of 212002028 in words is "two hundred twelve million, two thousand, twenty-eight".