211101210220201 has 16 divisors (see below), whose sum is σ = 242202499574400. Its totient is φ = 180237209758848.

The previous prime is 211101210220163. The next prime is 211101210220247. The reversal of 211101210220201 is 102022012101112.

It is a cyclic number.

It is not a de Polignac number, because 211101210220201 - 2³⁹ = 210551454406313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211101210221201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52022806 + ... + 55933663.

It is an arithmetic number, because the mean of its divisors is an integer number (15137656223400).

Almost surely, 2^{211101210220201} is an apocalyptic number.

It is an amenable number.

211101210220201 is a deficient number, since it is larger than the sum of its proper divisors (31101289354199).

211101210220201 is a wasteful number, since it uses less digits than its factorization.

211101210220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107957568.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211101210220201 its reverse (102022012101112), we get a palindrome (313123222321313).

The spelling of 211101210220201 in words is "two hundred eleven trillion, one hundred one billion, two hundred ten million, two hundred twenty thousand, two hundred one".