100221124111 has 4 divisors (see below), whose sum is σ = 100547577592. Its totient is φ = 99894670632.

The previous prime is 100221124093. The next prime is 100221124127. The reversal of 100221124111 is 111421122001.

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 100221124111 - 2⁵ = 100221124079 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 (100221124181) 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, 163226280 + ... + 163226893.

It is an arithmetic number, because the mean of its divisors is an integer number (25136894398).

Almost surely, 2^100221124111 is an apocalyptic number.

100221124111 is a deficient number, since it is larger than the sum of its proper divisors (326453481).

100221124111 is an equidigital number, since it uses as much as digits as its factorization.

100221124111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326453480.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100221124111 its reverse (111421122001), we get a palindrome (211642246112).

The spelling of 100221124111 in words is "one hundred billion, two hundred twenty-one million, one hundred twenty-four thousand, one hundred eleven".