201121012222103 has 4 divisors (see below), whose sum is σ = 201121079834280. Its totient is φ = 201120944609928.

The previous prime is 201121012222063. The next prime is 201121012222133. The reversal of 201121012222103 is 301222210121102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201121012222103 - 2⁸ = 201121012221847 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 (201121012222133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29128400 + ... + 35365317.

It is an arithmetic number, because the mean of its divisors is an integer number (50280269958570).

Almost surely, 2^{201121012222103} is an apocalyptic number.

201121012222103 is a deficient number, since it is larger than the sum of its proper divisors (67612177).

201121012222103 is an equidigital number, since it uses as much as digits as its factorization.

201121012222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67612176.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 201121012222103 its reverse (301222210121102), we get a palindrome (502343222343205).

The spelling of 201121012222103 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, two hundred twenty-two thousand, one hundred three".