100221033431111 has 4 divisors (see below), whose sum is σ = 100222120295400. Its totient is φ = 100219946566824.

The previous prime is 100221033431039. The next prime is 100221033431137. The reversal of 100221033431111 is 111134330122001.

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 100221033431111 - 2¹⁸ = 100221033168967 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 (100221033431411) 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, 543293816 + ... + 543478253.

It is an arithmetic number, because the mean of its divisors is an integer number (25055530073850).

Almost surely, 2^{100221033431111} is an apocalyptic number.

100221033431111 is a deficient number, since it is larger than the sum of its proper divisors (1086864289).

100221033431111 is an equidigital number, since it uses as much as digits as its factorization.

100221033431111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086864288.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 100221033431111 its reverse (111134330122001), we get a palindrome (211355363553112).

The spelling of 100221033431111 in words is "one hundred trillion, two hundred twenty-one billion, thirty-three million, four hundred thirty-one thousand, one hundred eleven".