1212451130 has 64 divisors (see below), whose sum is σ = 2416780800. Its totient is φ = 434291520.

The previous prime is 1212451129. The next prime is 1212451147. The reversal of 1212451130 is 311542121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2736689 + ... + 2737131.

It is an arithmetic number, because the mean of its divisors is an integer number (37762200).

Almost surely, 2^1212451130 is an apocalyptic number.

1212451130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212451130 is a deficient number, since it is larger than the sum of its proper divisors (1204329670).

1212451130 is a wasteful number, since it uses less digits than its factorization.

1212451130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1212451130 is about 34820.2689535851. The cubic root of 1212451130 is about 1066.3212912865.

Adding to 1212451130 its reverse (311542121), we get a palindrome (1523993251).

Subtracting from 1212451130 its reverse (311542121), we obtain a palindrome (900909009).

The spelling of 1212451130 in words is "one billion, two hundred twelve million, four hundred fifty-one thousand, one hundred thirty".