211022210020201 has 4 divisors (see below), whose sum is σ = 211028762926672. Its totient is φ = 211015657113732.

The previous prime is 211022210020123. The next prime is 211022210020249. The reversal of 211022210020201 is 102020012220112.

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-211022210020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211022210020001) 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, 3276404931 + ... + 3276469336.

It is an arithmetic number, because the mean of its divisors is an integer number (52757190731668).

Almost surely, 2^{211022210020201} is an apocalyptic number.

It is an amenable number.

211022210020201 is a deficient number, since it is larger than the sum of its proper divisors (6552906471).

211022210020201 is an equidigital number, since it uses as much as digits as its factorization.

211022210020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552906470.

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

Adding to 211022210020201 its reverse (102020012220112), we get a palindrome (313042222240313).

The spelling of 211022210020201 in words is "two hundred eleven trillion, twenty-two billion, two hundred ten million, twenty thousand, two hundred one".