1219230016 has 28 divisors (see below), whose sum is σ = 2431592800. Its totient is φ = 606545280.

The previous prime is 1219230007. The next prime is 1219230017. The reversal of 1219230016 is 6100329121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219230017) 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, 35130 + ... + 60601.

It is an arithmetic number, because the mean of its divisors is an integer number (86842600).

Almost surely, 2^1219230016 is an apocalyptic number.

1219230016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1219230016 is a deficient number, since it is larger than the sum of its proper divisors (1212362784).

1219230016 is an equidigital number, since it uses as much as digits as its factorization.

1219230016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95942 (or 95932 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1219230016 is about 34917.4743645642. The cubic root of 1219230016 is about 1068.3048875409.

Adding to 1219230016 its reverse (6100329121), we get a palindrome (7319559137).

The spelling of 1219230016 in words is "one billion, two hundred nineteen million, two hundred thirty thousand, sixteen".