1210440100 has 36 divisors (see below), whose sum is σ = 2634300144. Its totient is φ = 482766880.

The previous prime is 1210440079. The next prime is 1210440109. The reversal of 1210440100 is 10440121.

It is not an unprimeable number, because it can be changed into a prime (1210440109) 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 11 ways as a sum of consecutive naturals, for example, 17259 + ... + 52141.

It is an arithmetic number, because the mean of its divisors is an integer number (73175004).

Almost surely, 2^1210440100 is an apocalyptic number.

1210440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210440100 is an abundant number, since it is smaller than the sum of its proper divisors (1423860044).

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

1210440100 is a wasteful number, since it uses less digits than its factorization.

1210440100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35244 (or 35237 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1210440100 is about 34791.3796794551. The cubic root of 1210440100 is about 1065.7314143693.

Adding to 1210440100 its reverse (10440121), we get a palindrome (1220880221).

The spelling of 1210440100 in words is "one billion, two hundred ten million, four hundred forty thousand, one hundred".