100010001211 has 4 divisors (see below), whose sum is σ = 100135485072. Its totient is φ = 99884517352.

The previous prime is 100010001197. The next prime is 100010001251. The reversal of 100010001211 is 112100010001.

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 100010001211 - 2¹⁹ = 100009476923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100010001194 and 100010001203.

It is not an unprimeable number, because it can be changed into a prime (100010001251) 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, 62740735 + ... + 62742328.

It is an arithmetic number, because the mean of its divisors is an integer number (25033871268).

Almost surely, 2^100010001211 is an apocalyptic number.

100010001211 is a deficient number, since it is larger than the sum of its proper divisors (125483861).

100010001211 is an equidigital number, since it uses as much as digits as its factorization.

100010001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125483860.

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

Adding to 100010001211 its reverse (112100010001), we get a palindrome (212110011212).

The spelling of 100010001211 in words is "one hundred billion, ten million, one thousand, two hundred eleven".