201123141422121 has 6 divisors (see below), whose sum is σ = 290511204276410. Its totient is φ = 134082094281408.

The previous prime is 201123141422107. The next prime is 201123141422129. The reversal of 201123141422121 is 121224141321102.

201123141422121 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 2 + 3 + 1 + 414 + 221 + 21 = 666.

201123141422121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 167206623105600 + 33916518316521 = 12930840^2 + 5823789^2 .

It is not a de Polignac number, because 201123141422121 - 2¹⁴ = 201123141405737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201123141422129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11173507856776 + ... + 11173507856793.

Almost surely, 2^{201123141422121} is an apocalyptic number.

It is an amenable number.

201123141422121 is a deficient number, since it is larger than the sum of its proper divisors (89388062854289).

201123141422121 is a wasteful number, since it uses less digits than its factorization.

201123141422121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22347015713575 (or 22347015713572 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 201123141422121 its reverse (121224141321102), we get a palindrome (322347282743223).

The spelling of 201123141422121 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred forty-one million, four hundred twenty-two thousand, one hundred twenty-one".