212132266 has 8 divisors (see below), whose sum is σ = 332033184. Its totient is φ = 101454540.

The previous prime is 212132257. The next prime is 212132267. The reversal of 212132266 is 662231212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212132266.

It is not an unprimeable number, because it can be changed into a prime (212132267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2305740 + ... + 2305831.

It is an arithmetic number, because the mean of its divisors is an integer number (41504148).

Almost surely, 2^212132266 is an apocalyptic number.

212132266 is a deficient number, since it is larger than the sum of its proper divisors (119900918).

212132266 is a wasteful number, since it uses less digits than its factorization.

212132266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611596.

The product of its digits is 1728, while the sum is 25.

The square root of 212132266 is about 14564.7611034304. The cubic root of 212132266 is about 596.3971741936.

Adding to 212132266 its reverse (662231212), we get a palindrome (874363478).

The spelling of 212132266 in words is "two hundred twelve million, one hundred thirty-two thousand, two hundred sixty-six".