201121000221211 has 4 divisors (see below), whose sum is σ = 229852571681392. Its totient is φ = 172389428761032.

The previous prime is 201121000221199. The next prime is 201121000221221. The reversal of 201121000221211 is 112122000121102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201121000221211 - 2⁴¹ = 198921976965659 is a prime.

It is a super-2 number, since 2×201121000221211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121000221221) 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, 14365785730080 + ... + 14365785730093.

It is an arithmetic number, because the mean of its divisors is an integer number (57463142920348).

Almost surely, 2^{201121000221211} is an apocalyptic number.

201121000221211 is a deficient number, since it is larger than the sum of its proper divisors (28731571460181).

201121000221211 is an equidigital number, since it uses as much as digits as its factorization.

201121000221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28731571460180.

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

Adding to 201121000221211 its reverse (112122000121102), we get a palindrome (313243000342313).

The spelling of 201121000221211 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-one thousand, two hundred eleven".