201121101122001 has 8 divisors (see below), whose sum is σ = 268185289960224. Its totient is φ = 134068823182560.

The previous prime is 201121101121861. The next prime is 201121101122017. The reversal of 201121101122001 is 100221101121102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201121101122001 - 2²⁵ = 201121067567569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201121101122021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2977685295 + ... + 2977752836.

It is an arithmetic number, because the mean of its divisors is an integer number (33523161245028).

Almost surely, 2^{201121101122001} is an apocalyptic number.

It is an amenable number.

201121101122001 is a deficient number, since it is larger than the sum of its proper divisors (67064188838223).

201121101122001 is a wasteful number, since it uses less digits than its factorization.

201121101122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955449391.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201121101122001 its reverse (100221101121102), we get a palindrome (301342202243103).

The spelling of 201121101122001 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, one".