201211321213 has 8 divisors (see below), whose sum is σ = 230614697600. Its totient is φ = 171972670320.

The previous prime is 201211321183. The next prime is 201211321231. The reversal of 201211321213 is 312123112102.

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 201211321213 - 2³³ = 192621386621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211331213) 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, 41178753 + ... + 41183638.

It is an arithmetic number, because the mean of its divisors is an integer number (28826837200).

Almost surely, 2^201211321213 is an apocalyptic number.

It is an amenable number.

201211321213 is a deficient number, since it is larger than the sum of its proper divisors (29403376387).

201211321213 is an equidigital number, since it uses as much as digits as its factorization.

201211321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82362747.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 201211321213 its reverse (312123112102), we get a palindrome (513334433315).

It can be divided in two parts, 2012 and 11321213, that added together give a square (11323225 = 3365²).

The spelling of 201211321213 in words is "two hundred one billion, two hundred eleven million, three hundred twenty-one thousand, two hundred thirteen".