201201121121211 has 48 divisors (see below), whose sum is σ = 307613921771520. Its totient is φ = 126460952291520.

The previous prime is 201201121121197. The next prime is 201201121121233. The reversal of 201201121121211 is 112121121102102.

It is a happy number.

201201121121211 is a `hidden beast` number, since 20 + 1 + 201 + 1 + 211 + 21 + 211 = 666.

It is not a de Polignac number, because 201201121121211 - 2⁵ = 201201121121179 is a prime.

It is a super-2 number, since 2×201201121121211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201201121121411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52665670 + ... + 56356676.

It is an arithmetic number, because the mean of its divisors is an integer number (6408623370240).

Almost surely, 2^{201201121121211} is an apocalyptic number.

201201121121211 is a deficient number, since it is larger than the sum of its proper divisors (106412800650309).

201201121121211 is a wasteful number, since it uses less digits than its factorization.

201201121121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694816 (or 3694813 counting only the distinct ones).

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

Adding to 201201121121211 its reverse (112121121102102), we get a palindrome (313322242223313).

The spelling of 201201121121211 in words is "two hundred one trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".