100212310111 has 4 divisors (see below), whose sum is σ = 100220606272. Its totient is φ = 100204013952.

The previous prime is 100212310087. The next prime is 100212310127. The reversal of 100212310111 is 111013212001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111013212001 = 757 ⋅146648893.

It is a cyclic number.

It is not a de Polignac number, because 100212310111 - 2⁹ = 100212309599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100212310091 and 100212310100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212310151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4129935 + ... + 4154128.

It is an arithmetic number, because the mean of its divisors is an integer number (25055151568).

Almost surely, 2^100212310111 is an apocalyptic number.

100212310111 is a deficient number, since it is larger than the sum of its proper divisors (8296161).

100212310111 is an equidigital number, since it uses as much as digits as its factorization.

100212310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8296160.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 100212310111 its reverse (111013212001), we get a palindrome (211225522112).

The spelling of 100212310111 in words is "one hundred billion, two hundred twelve million, three hundred ten thousand, one hundred eleven".