100021122111 has 16 divisors (see below), whose sum is σ = 133986960000. Its totient is φ = 66368204448.

The previous prime is 100021122109. The next prime is 100021122139. The reversal of 100021122111 is 111221120001.

It is not a de Polignac number, because 100021122111 - 2¹ = 100021122109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021122181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2277640 + ... + 2321138.

It is an arithmetic number, because the mean of its divisors is an integer number (8374185000).

Almost surely, 2^100021122111 is an apocalyptic number.

100021122111 is a deficient number, since it is larger than the sum of its proper divisors (33965837889).

100021122111 is a wasteful number, since it uses less digits than its factorization.

100021122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47078.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100021122111 its reverse (111221120001), we get a palindrome (211242242112).

The spelling of 100021122111 in words is "one hundred billion, twenty-one million, one hundred twenty-two thousand, one hundred eleven".