201212021111201 has 4 divisors (see below), whose sum is σ = 201632087961600. Its totient is φ = 200791954260804.

The previous prime is 201212021111197. The next prime is 201212021111251. The reversal of 201212021111201 is 102111120212102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201212021111201 - 2² = 201212021111197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201212021111201.

It is not an unprimeable number, because it can be changed into a prime (201212021111251) 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, 210033424481 + ... + 210033425438.

It is an arithmetic number, because the mean of its divisors is an integer number (50408021990400).

Almost surely, 2^{201212021111201} is an apocalyptic number.

It is an amenable number.

201212021111201 is a deficient number, since it is larger than the sum of its proper divisors (420066850399).

201212021111201 is an equidigital number, since it uses as much as digits as its factorization.

201212021111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420066850398.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201212021111201 its reverse (102111120212102), we get a palindrome (303323141323303).

The spelling of 201212021111201 in words is "two hundred one trillion, two hundred twelve billion, twenty-one million, one hundred eleven thousand, two hundred one".