201211010121 has 32 divisors (see below), whose sum is σ = 294062186880. Its totient is φ = 121367347200.

The previous prime is 201211010083. The next prime is 201211010149. The reversal of 201211010121 is 121010112102.

201211010121 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 201211010121 - 2¹⁷ = 201210879049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201211010097 and 201211010106.

It is not an unprimeable number, because it can be changed into a prime (201211010171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7421931 + ... + 7448991.

It is an arithmetic number, because the mean of its divisors is an integer number (9189443340).

Almost surely, 2^201211010121 is an apocalyptic number.

It is an amenable number.

201211010121 is a deficient number, since it is larger than the sum of its proper divisors (92851176759).

201211010121 is a wasteful number, since it uses less digits than its factorization.

201211010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28137.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201211010121 its reverse (121010112102), we get a palindrome (322221122223).

The spelling of 201211010121 in words is "two hundred one billion, two hundred eleven million, ten thousand, one hundred twenty-one".