210390212 has 12 divisors (see below), whose sum is σ = 368954880. Its totient is φ = 104974536.

The previous prime is 210390209. The next prime is 210390217. The reversal of 210390212 is 212093012.

It is not an unprimeable number, because it can be changed into a prime (210390217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52988 + ... + 56819.

It is an arithmetic number, because the mean of its divisors is an integer number (30746240).

Almost surely, 2^210390212 is an apocalyptic number.

It is an amenable number.

210390212 is a deficient number, since it is larger than the sum of its proper divisors (158564668).

210390212 is a wasteful number, since it uses less digits than its factorization.

210390212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110290 (or 110288 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 210390212 is about 14504.8340907437. The cubic root of 210390212 is about 594.7601245717.

The spelling of 210390212 in words is "two hundred ten million, three hundred ninety thousand, two hundred twelve".