100212011 has 4 divisors (see below), whose sum is σ = 100232400. Its totient is φ = 100191624.

The previous prime is 100211981. The next prime is 100212043. The reversal of 100212011 is 110212001.

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 100212011 - 2¹⁰ = 100210987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100212011.

It is not an unprimeable number, because it can be changed into a prime (100212071) 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, 2210 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (25058100).

Almost surely, 2^100212011 is an apocalyptic number.

100212011 is a deficient number, since it is larger than the sum of its proper divisors (20389).

100212011 is an equidigital number, since it uses as much as digits as its factorization.

100212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20388.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 100212011 is about 10010.5949373651. The cubic root of 100212011 is about 464.4866744493.

Adding to 100212011 its reverse (110212001), we get a palindrome (210424012).

The spelling of 100212011 in words is "one hundred million, two hundred twelve thousand, eleven".