201322013021 has 4 divisors (see below), whose sum is σ = 201332537952. Its totient is φ = 201311488092.

The previous prime is 201322013003. The next prime is 201322013111. The reversal of 201322013021 is 120310223102.

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 201322013021 - 2¹⁴ = 201321996637 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 (201322013821) 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, 5233721 + ... + 5272046.

It is an arithmetic number, because the mean of its divisors is an integer number (50333134488).

Almost surely, 2^201322013021 is an apocalyptic number.

It is an amenable number.

201322013021 is a deficient number, since it is larger than the sum of its proper divisors (10524931).

201322013021 is a wasteful number, since it uses less digits than its factorization.

201322013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524930.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201322013021 its reverse (120310223102), we get a palindrome (321632236123).

The spelling of 201322013021 in words is "two hundred one billion, three hundred twenty-two million, thirteen thousand, twenty-one".