11122889451228 has 48 divisors (see below), whose sum is σ = 28941226006560. Its totient is φ = 3694244861952.

The previous prime is 11122889451221. The next prime is 11122889451257. The reversal of 11122889451228 is 82215498822111.

11122889451228 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 28 + 89 + 4 + 512 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122889451221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185872101 + ... + 185931932.

It is an arithmetic number, because the mean of its divisors is an integer number (602942208470).

Almost surely, 2^{11122889451228} is an apocalyptic number.

11122889451228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11122889451228 is an abundant number, since it is smaller than the sum of its proper divisors (17818336555332).

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

11122889451228 is a wasteful number, since it uses less digits than its factorization.

11122889451228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371804323 (or 371804315 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 54.

The spelling of 11122889451228 in words is "eleven trillion, one hundred twenty-two billion, eight hundred eighty-nine million, four hundred fifty-one thousand, two hundred twenty-eight".