11112223112 has 64 divisors (see below), whose sum is σ = 22836038400. Its totient is φ = 5050944000.

The previous prime is 11112223069. The next prime is 11112223121. The reversal of 11112223112 is 21132221111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365537 + ... + 394767.

It is an arithmetic number, because the mean of its divisors is an integer number (356813100).

Almost surely, 2^11112223112 is an apocalyptic number.

It is an amenable number.

11112223112 is an abundant number, since it is smaller than the sum of its proper divisors (11723815288).

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

11112223112 is a wasteful number, since it uses less digits than its factorization.

11112223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29358 (or 29354 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

Adding to 11112223112 its reverse (21132221111), we get a palindrome (32244444223).

The spelling of 11112223112 in words is "eleven billion, one hundred twelve million, two hundred twenty-three thousand, one hundred twelve".