1102221987 has 16 divisors (see below), whose sum is σ = 1481760000. Its totient is φ = 728765024.

The previous prime is 1102221947. The next prime is 1102222007. The reversal of 1102221987 is 7891222011.

It is a cyclic number.

It is not a de Polignac number, because 1102221987 - 2⁷ = 1102221859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1102221907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373564 + ... + 376502.

It is an arithmetic number, because the mean of its divisors is an integer number (92610000).

Almost surely, 2^1102221987 is an apocalyptic number.

1102221987 is a deficient number, since it is larger than the sum of its proper divisors (379538013).

1102221987 is a wasteful number, since it uses less digits than its factorization.

1102221987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1102221987 is about 33199.7287187712. The cubic root of 1102221987 is about 1032.9747125180.

Adding to 1102221987 its reverse (7891222011), we get a palindrome (8993443998).

The spelling of 1102221987 in words is "one billion, one hundred two million, two hundred twenty-one thousand, nine hundred eighty-seven".