201044221213 has 4 divisors (see below), whose sum is σ = 219320968608. Its totient is φ = 182767473820.

The previous prime is 201044221211. The next prime is 201044221283. The reversal of 201044221213 is 312122440102.

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 201044221213 - 2¹ = 201044221211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9138373681 + ... + 9138373702.

It is an arithmetic number, because the mean of its divisors is an integer number (54830242152).

Almost surely, 2^201044221213 is an apocalyptic number.

It is an amenable number.

201044221213 is a deficient number, since it is larger than the sum of its proper divisors (18276747395).

201044221213 is a wasteful number, since it uses less digits than its factorization.

201044221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18276747394.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201044221213 its reverse (312122440102), we get a palindrome (513166661315).

The spelling of 201044221213 in words is "two hundred one billion, forty-four million, two hundred twenty-one thousand, two hundred thirteen".