1102212128 has 24 divisors (see below), whose sum is σ = 2185828092. Its totient is φ = 547081216.

The previous prime is 1102212121. The next prime is 1102212131. The reversal of 1102212128 is 8212122011.

It can be written as a sum of positive squares in 2 ways, for example, as 1069813264 + 32398864 = 32708^2 + 5692^2 .

It is a super-2 number, since 2×1102212128² = 2429743150220576768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1102212121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121325 + ... + 130092.

Almost surely, 2^1102212128 is an apocalyptic number.

It is an amenable number.

1102212128 is a deficient number, since it is larger than the sum of its proper divisors (1083615964).

1102212128 is a wasteful number, since it uses less digits than its factorization.

1102212128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251564 (or 251556 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1102212128 is about 33199.5802383102. The cubic root of 1102212128 is about 1032.9716326399.

Adding to 1102212128 its reverse (8212122011), we get a palindrome (9314334139).

The spelling of 1102212128 in words is "one billion, one hundred two million, two hundred twelve thousand, one hundred twenty-eight".