201103212101 has 4 divisors (see below), whose sum is σ = 219385322304. Its totient is φ = 182821101900.

The previous prime is 201103212083. The next prime is 201103212119. The reversal of 201103212101 is 101212301102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (201103212083) and next prime (201103212119).

It is a cyclic number.

It is not a de Polignac number, because 201103212101 - 2²⁶ = 201036103237 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 (201103272101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9141055085 + ... + 9141055106.

It is an arithmetic number, because the mean of its divisors is an integer number (54846330576).

Almost surely, 2^201103212101 is an apocalyptic number.

It is an amenable number.

201103212101 is a deficient number, since it is larger than the sum of its proper divisors (18282110203).

201103212101 is a wasteful number, since it uses less digits than its factorization.

201103212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18282110202.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 201103212101 its reverse (101212301102), we get a palindrome (302315513203).

The spelling of 201103212101 in words is "two hundred one billion, one hundred three million, two hundred twelve thousand, one hundred one".