101221113203 has 4 divisors (see below), whose sum is σ = 115681272240. Its totient is φ = 86760954168.

The previous prime is 101221113197. The next prime is 101221113223. The reversal of 101221113203 is 302311122101.

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

It is not a de Polignac number, because 101221113203 - 2¹⁸ = 101220851059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221113223) 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, 7230079508 + ... + 7230079521.

It is an arithmetic number, because the mean of its divisors is an integer number (28920318060).

Almost surely, 2^101221113203 is an apocalyptic number.

101221113203 is a deficient number, since it is larger than the sum of its proper divisors (14460159037).

101221113203 is an equidigital number, since it uses as much as digits as its factorization.

101221113203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14460159036.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101221113203 its reverse (302311122101), we get a palindrome (403532235304).

The spelling of 101221113203 in words is "one hundred one billion, two hundred twenty-one million, one hundred thirteen thousand, two hundred three".