211121122201 has 4 divisors (see below), whose sum is σ = 230313951504. Its totient is φ = 191928292900.

The previous prime is 211121122187. The next prime is 211121122217. The reversal of 211121122201 is 102221121112.

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 211121122201 - 2¹⁷ = 211120991129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121120201) 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, 9596414635 + ... + 9596414656.

It is an arithmetic number, because the mean of its divisors is an integer number (57578487876).

Almost surely, 2^211121122201 is an apocalyptic number.

It is an amenable number.

211121122201 is a deficient number, since it is larger than the sum of its proper divisors (19192829303).

211121122201 is a wasteful number, since it uses less digits than its factorization.

211121122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19192829302.

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

Adding to 211121122201 its reverse (102221121112), we get a palindrome (313342243313).

The spelling of 211121122201 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred one".