201202021213 has 4 divisors (see below), whose sum is σ = 201211631008. Its totient is φ = 201192411420.

The previous prime is 201202021169. The next prime is 201202021217. The reversal of 201202021213 is 312120202102.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-201202021213 is a prime.

It is a super-3 number, since 3×201202021213³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202021217) 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, 4773423 + ... + 4815388.

It is an arithmetic number, because the mean of its divisors is an integer number (50302907752).

Almost surely, 2^201202021213 is an apocalyptic number.

It is an amenable number.

201202021213 is a deficient number, since it is larger than the sum of its proper divisors (9609795).

201202021213 is an equidigital number, since it uses as much as digits as its factorization.

201202021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9609794.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201202021213 its reverse (312120202102), we get a palindrome (513322223315).

The spelling of 201202021213 in words is "two hundred one billion, two hundred two million, twenty-one thousand, two hundred thirteen".