211020012220201 has 4 divisors (see below), whose sum is σ = 211271525942400. Its totient is φ = 210768498498004.

The previous prime is 211020012220189. The next prime is 211020012220231. The reversal of 211020012220201 is 102022210020112.

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 not a de Polignac number, because 211020012220201 - 2⁹ = 211020012219689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211020012220231) 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, 125756859841 + ... + 125756861518.

It is an arithmetic number, because the mean of its divisors is an integer number (52817881485600).

Almost surely, 2^{211020012220201} is an apocalyptic number.

It is an amenable number.

211020012220201 is a deficient number, since it is larger than the sum of its proper divisors (251513722199).

211020012220201 is an equidigital number, since it uses as much as digits as its factorization.

211020012220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251513722198.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211020012220201 its reverse (102022210020112), we get a palindrome (313042222240313).

The spelling of 211020012220201 in words is "two hundred eleven trillion, twenty billion, twelve million, two hundred twenty thousand, two hundred one".