201121010211121 has 16 divisors (see below), whose sum is σ = 270036601123968. Its totient is φ = 144662464886400.

The previous prime is 201121010211113. The next prime is 201121010211127. The reversal of 201121010211121 is 121112010121102.

It is a cyclic number.

It is not a de Polignac number, because 201121010211121 - 2³ = 201121010211113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201121010211095 and 201121010211104.

It is not an unprimeable number, because it can be changed into a prime (201121010211127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100460044060 + ... + 100460046061.

It is an arithmetic number, because the mean of its divisors is an integer number (16877287570248).

Almost surely, 2^{201121010211121} is an apocalyptic number.

It is an amenable number.

201121010211121 is a deficient number, since it is larger than the sum of its proper divisors (68915590912847).

201121010211121 is a wasteful number, since it uses less digits than its factorization.

201121010211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200920090152.

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

Adding to 201121010211121 its reverse (121112010121102), we get a palindrome (322233020332223).

The spelling of 201121010211121 in words is "two hundred one trillion, one hundred twenty-one billion, ten million, two hundred eleven thousand, one hundred twenty-one".