1102121450 has 12 divisors (see below), whose sum is σ = 2049945990. Its totient is φ = 440848560.

The previous prime is 1102121389. The next prime is 1102121477. The reversal of 1102121450 is 541212011.

It can be written as a sum of positive squares in 3 ways, for example, as 1045164241 + 56957209 = 32329^2 + 7547^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 11021165 + ... + 11021264.

Almost surely, 2^1102121450 is an apocalyptic number.

1102121450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1102121450 is a deficient number, since it is larger than the sum of its proper divisors (947824540).

1102121450 is a wasteful number, since it uses less digits than its factorization.

1102121450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22042441 (or 22042436 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1102121450 is about 33198.2145604248. The cubic root of 1102121450 is about 1032.9433046475.

Adding to 1102121450 its reverse (541212011), we get a palindrome (1643333461).

The spelling of 1102121450 in words is "one billion, one hundred two million, one hundred twenty-one thousand, four hundred fifty".