201213210113101 has 4 divisors (see below), whose sum is σ = 201370530841600. Its totient is φ = 201055889384604.

The previous prime is 201213210113063. The next prime is 201213210113107. The reversal of 201213210113101 is 101311012312102.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201213210113101 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 (201213210113107) 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, 78660362331 + ... + 78660364888.

It is an arithmetic number, because the mean of its divisors is an integer number (50342632710400).

Almost surely, 2^{201213210113101} is an apocalyptic number.

It is an amenable number.

201213210113101 is a deficient number, since it is larger than the sum of its proper divisors (157320728499).

201213210113101 is a wasteful number, since it uses less digits than its factorization.

201213210113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157320728498.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 201213210113101 its reverse (101311012312102), we get a palindrome (302524222425203).

The spelling of 201213210113101 in words is "two hundred one trillion, two hundred thirteen billion, two hundred ten million, one hundred thirteen thousand, one hundred one".