211121201201121 has 12 divisors (see below), whose sum is σ = 305116184632272. Its totient is φ = 140672080489176.

The previous prime is 211121201201107. The next prime is 211121201201123. The reversal of 211121201201121 is 121102102121112.

It is a happy number.

211121201201121 is a `hidden beast` number, since 21 + 1 + 121 + 201 + 201 + 121 = 666.

211121201201121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211121201201121 - 2¹⁷ = 211121201070049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211121201201094 and 211121201201103.

It is not an unprimeable number, because it can be changed into a prime (211121201201123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6282230451 + ... + 6282264056.

It is an arithmetic number, because the mean of its divisors is an integer number (25426348719356).

Almost surely, 2^{211121201201121} is an apocalyptic number.

It is an amenable number.

211121201201121 is a deficient number, since it is larger than the sum of its proper divisors (93994983431151).

211121201201121 is a wasteful number, since it uses less digits than its factorization.

211121201201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564496380 (or 12564496377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211121201201121 its reverse (121102102121112), we get a palindrome (332223303322233).

The spelling of 211121201201121 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred one million, two hundred one thousand, one hundred twenty-one".