100100021111 has 2 divisors, whose sum is σ = 100100021112. Its totient is φ = 100100021110.

The previous prime is 100100021107. The next prime is 100100021179. The reversal of 100100021111 is 111120001001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100100021111 - 2² = 100100021107 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100100021611) 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 as a sum of consecutive naturals, namely, 50050010555 + 50050010556.

It is an arithmetic number, because the mean of its divisors is an integer number (50050010556).

Almost surely, 2^100100021111 is an apocalyptic number.

100100021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100100021111 is an equidigital number, since it uses as much as digits as its factorization.

100100021111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 100100021111 its reverse (111120001001), we get a palindrome (211220022112).

The spelling of 100100021111 in words is "one hundred billion, one hundred million, twenty-one thousand, one hundred eleven".