201121001022101 has 8 divisors (see below), whose sum is σ = 209873775181824. Its totient is φ = 192368925430000.

The previous prime is 201121001022091. The next prime is 201121001022143. The reversal of 201121001022101 is 101220100121102.

201121001022101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 201121001022101 - 2¹⁸ = 201121000759957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121001022191) 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, 174053525 + ... + 175205226.

It is an arithmetic number, because the mean of its divisors is an integer number (26234221897728).

Almost surely, 2^{201121001022101} is an apocalyptic number.

It is an amenable number.

201121001022101 is a deficient number, since it is larger than the sum of its proper divisors (8752774159723).

201121001022101 is a wasteful number, since it uses less digits than its factorization.

201121001022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349283811.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201121001022101 its reverse (101220100121102), we get a palindrome (302341101143203).

Subtracting from 201121001022101 its reverse (101220100121102), we obtain a palindrome (99900900900999).

The spelling of 201121001022101 in words is "two hundred one trillion, one hundred twenty-one billion, one million, twenty-two thousand, one hundred one".