1122032100 has 72 divisors (see below), whose sum is σ = 3710193088. Its totient is φ = 256464000.

The previous prime is 1122032089. The next prime is 1122032111. The reversal of 1122032100 is 12302211.

It is an interprime number because it is at equal distance from previous prime (1122032089) and next prime (1122032111).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265051 + ... + 269250.

Almost surely, 2^1122032100 is an apocalyptic number.

1122032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122032100 is an abundant number, since it is smaller than the sum of its proper divisors (2588160988).

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

1122032100 is a wasteful number, since it uses less digits than its factorization.

1122032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534325 (or 534318 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1122032100 is about 33496.7476033122. The cubic root of 1122032100 is about 1039.1265163303.

Adding to 1122032100 its reverse (12302211), we get a palindrome (1134334311).

The spelling of 1122032100 in words is "one billion, one hundred twenty-two million, thirty-two thousand, one hundred".