212133320011 has 4 divisors (see below), whose sum is σ = 212137802352. Its totient is φ = 212128837672.

The previous prime is 212133319987. The next prime is 212133320023. The reversal of 212133320011 is 110023331212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212133320011 - 2³¹ = 209985836363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212133329011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2169415 + ... + 2265088.

It is an arithmetic number, because the mean of its divisors is an integer number (53034450588).

Almost surely, 2^212133320011 is an apocalyptic number.

212133320011 is a deficient number, since it is larger than the sum of its proper divisors (4482341).

212133320011 is an equidigital number, since it uses as much as digits as its factorization.

212133320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482340.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212133320011 its reverse (110023331212), we get a palindrome (322156651223).

The spelling of 212133320011 in words is "two hundred twelve billion, one hundred thirty-three million, three hundred twenty thousand, eleven".