212320011 has 8 divisors (see below), whose sum is σ = 284004864. Its totient is φ = 141090920.

The previous prime is 212320007. The next prime is 212320019. The reversal of 212320011 is 110023212.

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

It is a cyclic number.

It is not a de Polignac number, because 212320011 - 2² = 212320007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212320019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112851 + ... + 114716.

It is an arithmetic number, because the mean of its divisors is an integer number (35500608).

Almost surely, 2^212320011 is an apocalyptic number.

212320011 is a deficient number, since it is larger than the sum of its proper divisors (71684853).

212320011 is a wasteful number, since it uses less digits than its factorization.

212320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227881.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 212320011 is about 14571.2048575264. The cubic root of 212320011 is about 596.5730669249.

Adding to 212320011 its reverse (110023212), we get a palindrome (322343223).

The spelling of 212320011 in words is "two hundred twelve million, three hundred twenty thousand, eleven".