30212166 has 64 divisors (see below), whose sum is σ = 67092480. Its totient is φ = 9033120.

The previous prime is 30212153. The next prime is 30212167. The reversal of 30212166 is 66121203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293271 + ... + 293373.

It is an arithmetic number, because the mean of its divisors is an integer number (1048320).

Almost surely, 2^30212166 is an apocalyptic number.

30212166 is an abundant number, since it is smaller than the sum of its proper divisors (36880314).

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

30212166 is a wasteful number, since it uses less digits than its factorization.

30212166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30212166 is about 5496.5594693408. The cubic root of 30212166 is about 311.4540295460.

Adding to 30212166 its reverse (66121203), we get a palindrome (96333369).

The spelling of 30212166 in words is "thirty million, two hundred twelve thousand, one hundred sixty-six".