201240121404201 has 16 divisors (see below), whose sum is σ = 293253962858688. Its totient is φ = 121738268692800.

The previous prime is 201240121404193. The next prime is 201240121404239. The reversal of 201240121404201 is 102404121042102.

It is a happy number.

It is not a de Polignac number, because 201240121404201 - 2³ = 201240121404193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201240121404401) 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, 5636013106 + ... + 5636048811.

It is an arithmetic number, because the mean of its divisors is an integer number (18328372678668).

Almost surely, 2^{201240121404201} is an apocalyptic number.

It is an amenable number.

201240121404201 is a deficient number, since it is larger than the sum of its proper divisors (92013841454487).

201240121404201 is a wasteful number, since it uses less digits than its factorization.

201240121404201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11272062472.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 201240121404201 its reverse (102404121042102), we get a palindrome (303644242446303).

The spelling of 201240121404201 in words is "two hundred one trillion, two hundred forty billion, one hundred twenty-one million, four hundred four thousand, two hundred one".