100012211443 has 4 divisors (see below), whose sum is σ = 100083701200. Its totient is φ = 99940721688.

The previous prime is 100012211413. The next prime is 100012211461. The reversal of 100012211443 is 344112210001.

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 100012211443 - 2²⁵ = 99978657011 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 100012211443.

It is not an unprimeable number, because it can be changed into a prime (100012211413) 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, 35742780 + ... + 35745577.

It is an arithmetic number, because the mean of its divisors is an integer number (25020925300).

Almost surely, 2^100012211443 is an apocalyptic number.

100012211443 is a deficient number, since it is larger than the sum of its proper divisors (71489757).

100012211443 is an equidigital number, since it uses as much as digits as its factorization.

100012211443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71489756.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100012211443 its reverse (344112210001), we get a palindrome (444124421444).

The spelling of 100012211443 in words is "one hundred billion, twelve million, two hundred eleven thousand, four hundred forty-three".