211112554404 has 24 divisors (see below), whose sum is σ = 495096452928. Its totient is φ = 70013638240.

The previous prime is 211112554391. The next prime is 211112554417. The reversal of 211112554404 is 404455211112.

It is an interprime number because it is at equal distance from previous prime (211112554391) and next prime (211112554417).

It is a super-3 number, since 3×211112554404³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44649192 + ... + 44653919.

It is an arithmetic number, because the mean of its divisors is an integer number (20629018872).

Almost surely, 2^211112554404 is an apocalyptic number.

It is an amenable number.

211112554404 is an abundant number, since it is smaller than the sum of its proper divisors (283983898524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211112554404 is a wasteful number, since it uses less digits than its factorization.

211112554404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89303315 (or 89303313 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 211112554404 its reverse (404455211112), we get a palindrome (615567765516).

The spelling of 211112554404 in words is "two hundred eleven billion, one hundred twelve million, five hundred fifty-four thousand, four hundred four".