111122223000 has 128 divisors (see below), whose sum is σ = 361775531520. Its totient is φ = 28344201600.

The previous prime is 111122222987. The next prime is 111122223053. The reversal of 111122223000 is 322221111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736234 + ... + 874233.

It is an arithmetic number, because the mean of its divisors is an integer number (2826371340).

Almost surely, 2^111122223000 is an apocalyptic number.

111122223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122223000 is an abundant number, since it is smaller than the sum of its proper divisors (250653308520).

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

111122223000 is a wasteful number, since it uses less digits than its factorization.

111122223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610514 (or 1610500 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 111122223000 its reverse (322221111), we get a palindrome (111444444111).

The spelling of 111122223000 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twenty-three thousand".