100111021219 has 4 divisors (see below), whose sum is σ = 109212023160. Its totient is φ = 91010019280.

The previous prime is 100111021201. The next prime is 100111021237. The reversal of 100111021219 is 912120111001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (100111021201) and next prime (100111021237).

It is a cyclic number.

It is not a de Polignac number, because 100111021219 - 2⁵ = 100111021187 is a prime.

It is a super-2 number, since 2×100111021219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100111021196 and 100111021205.

It is not an unprimeable number, because it can be changed into a prime (100111001219) 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, 4550500954 + ... + 4550500975.

It is an arithmetic number, because the mean of its divisors is an integer number (27303005790).

Almost surely, 2^100111021219 is an apocalyptic number.

100111021219 is a deficient number, since it is larger than the sum of its proper divisors (9101001941).

100111021219 is an equidigital number, since it uses as much as digits as its factorization.

100111021219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101001940.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 100111021219 in words is "one hundred billion, one hundred eleven million, twenty-one thousand, two hundred nineteen".