201021113311211 has 8 divisors (see below), whose sum is σ = 201295591668864. Its totient is φ = 200746768169920.

The previous prime is 201021113311177. The next prime is 201021113311261. The reversal of 201021113311211 is 112113311120102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201021113311211 - 2⁶ = 201021113311147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021113311261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30283880 + ... + 36320181.

It is an arithmetic number, because the mean of its divisors is an integer number (25161948958608).

Almost surely, 2^{201021113311211} is an apocalyptic number.

201021113311211 is a deficient number, since it is larger than the sum of its proper divisors (274478357653).

201021113311211 is an equidigital number, since it uses as much as digits as its factorization.

201021113311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66608181.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 201021113311211 its reverse (112113311120102), we get a palindrome (313134424431313).

The spelling of 201021113311211 in words is "two hundred one trillion, twenty-one billion, one hundred thirteen million, three hundred eleven thousand, two hundred eleven".