1102211988 has 12 divisors (see below), whose sum is σ = 2571828000. Its totient is φ = 367403992.

The previous prime is 1102211987. The next prime is 1102212043. The reversal of 1102211988 is 8891122011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102211987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45925488 + ... + 45925511.

It is an arithmetic number, because the mean of its divisors is an integer number (214319000).

Almost surely, 2^1102211988 is an apocalyptic number.

It is an amenable number.

1102211988 is an abundant number, since it is smaller than the sum of its proper divisors (1469616012).

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

1102211988 is a wasteful number, since it uses less digits than its factorization.

1102211988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91851006 (or 91851004 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 33.

The square root of 1102211988 is about 33199.5781298498. The cubic root of 1102211988 is about 1032.9715889048.

Adding to 1102211988 its reverse (8891122011), we get a palindrome (9993333999).

The spelling of 1102211988 in words is "one billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-eight".