1128888222281 has 16 divisors (see below), whose sum is σ = 1143312998400. Its totient is φ = 1114503667200.

The previous prime is 1128888222269. The next prime is 1128888222323. The reversal of 1128888222281 is 1822228888211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128888222281 is a prime.

It is a super-2 number, since 2×1128888222281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128888222221) 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, 194935496 + ... + 194941286.

It is an arithmetic number, because the mean of its divisors is an integer number (71457062400).

Almost surely, 2^{1128888222281} is an apocalyptic number.

It is an amenable number.

1128888222281 is a deficient number, since it is larger than the sum of its proper divisors (14424776119).

1128888222281 is a wasteful number, since it uses less digits than its factorization.

1128888222281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840.

The product of its digits is 1048576, while the sum is 53.

The spelling of 1128888222281 in words is "one trillion, one hundred twenty-eight billion, eight hundred eighty-eight million, two hundred twenty-two thousand, two hundred eighty-one".