111228450928 has 40 divisors (see below), whose sum is σ = 246729172608. Its totient is φ = 47584638912.

The previous prime is 111228450889. The next prime is 111228450929. The reversal of 111228450928 is 829054822111.

It is a super-2 number, since 2×111228450928² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111228450929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818926 + ... + 945037.

Almost surely, 2^111228450928 is an apocalyptic number.

It is an amenable number.

111228450928 is an abundant number, since it is smaller than the sum of its proper divisors (135500721680).

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

111228450928 is a wasteful number, since it uses less digits than its factorization.

111228450928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764541 (or 1764535 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 111228450928 in words is "one hundred eleven billion, two hundred twenty-eight million, four hundred fifty thousand, nine hundred twenty-eight".