20111112219 has 12 divisors (see below), whose sum is σ = 29474137448. Its totient is φ = 12188552640.

The previous prime is 20111112199. The next prime is 20111112221. The reversal of 20111112219 is 91221111102.

It is not a de Polignac number, because 20111112219 - 2²⁷ = 19976894491 is a prime.

It is a super-2 number, since 2×20111112219² (a number of 21 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 = 20111112195 and 20111112204.

It is not an unprimeable number, because it can be changed into a prime (20111112269) 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 11 ways as a sum of consecutive naturals, for example, 27700894 + ... + 27701619.

Almost surely, 2^20111112219 is an apocalyptic number.

20111112219 is a deficient number, since it is larger than the sum of its proper divisors (9363025229).

20111112219 is a wasteful number, since it uses less digits than its factorization.

20111112219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55402538 (or 55402527 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 20111112219 in words is "twenty billion, one hundred eleven million, one hundred twelve thousand, two hundred nineteen".