100012111 has 2 divisors, whose sum is σ = 100012112. Its totient is φ = 100012110.

The previous prime is 100012103. The next prime is 100012153. The reversal of 100012111 is 111210001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100012111 - 2³ = 100012103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100012094 and 100012103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100312111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50006055 + 50006056.

It is an arithmetic number, because the mean of its divisors is an integer number (50006056).

Almost surely, 2^100012111 is an apocalyptic number.

100012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100012111 is an equidigital number, since it uses as much as digits as its factorization.

100012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 100012111 is about 10000.6055316666. The cubic root of 100012111 is about 464.1776206990.

Adding to 100012111 its reverse (111210001), we get a palindrome (211222112).

The spelling of 100012111 in words is "one hundred million, twelve thousand, one hundred eleven".