201011213213 has 4 divisors (see below), whose sum is σ = 201030314940. Its totient is φ = 200992111488.

The previous prime is 201011213189. The next prime is 201011213267. The reversal of 201011213213 is 312312110102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312312110102 = 2 ⋅156156055051.

It can be written as a sum of positive squares in 2 ways, for example, as 187200732889 + 13810480324 = 432667^2 + 117518^2 .

It is a cyclic number.

It is not a de Polignac number, because 201011213213 - 2¹⁰ = 201011212189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201011213191 and 201011213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011213113) 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, 9535070 + ... + 9556127.

It is an arithmetic number, because the mean of its divisors is an integer number (50257578735).

Almost surely, 2^201011213213 is an apocalyptic number.

It is an amenable number.

201011213213 is a deficient number, since it is larger than the sum of its proper divisors (19101727).

201011213213 is a wasteful number, since it uses less digits than its factorization.

201011213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19101726.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201011213213 its reverse (312312110102), we get a palindrome (513323323315).

The spelling of 201011213213 in words is "two hundred one billion, eleven million, two hundred thirteen thousand, two hundred thirteen".