212331011 has 8 divisors (see below), whose sum is σ = 220644480. Its totient is φ = 204083712.

The previous prime is 212330999. The next prime is 212331089. The reversal of 212331011 is 110133212.

212331011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212331011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212331211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9950 + ... + 22883.

It is an arithmetic number, because the mean of its divisors is an integer number (27580560).

Almost surely, 2^212331011 is an apocalyptic number.

212331011 is a deficient number, since it is larger than the sum of its proper divisors (8313469).

212331011 is a wasteful number, since it uses less digits than its factorization.

212331011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33085.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 212331011 is about 14571.5823094131. The cubic root of 212331011 is about 596.5833692831.

Adding to 212331011 its reverse (110133212), we get a palindrome (322464223).

The spelling of 212331011 in words is "two hundred twelve million, three hundred thirty-one thousand, eleven".