1204212500 has 36 divisors (see below), whose sum is σ = 2634073596. Its totient is φ = 481680000.

The previous prime is 1204212473. The next prime is 1204212509. The reversal of 1204212500 is 52124021.

It can be written as a sum of positive squares in 6 ways, for example, as 1046910736 + 157301764 = 32356^2 + 12542^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204212509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35669 + ... + 60668.

It is an arithmetic number, because the mean of its divisors is an integer number (73168711).

Almost surely, 2^1204212500 is an apocalyptic number.

1204212500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204212500 is an abundant number, since it is smaller than the sum of its proper divisors (1429861096).

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

1204212500 is an frugal number, since it uses more digits than its factorization.

1204212500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96366 (or 96344 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1204212500 is about 34701.7650847907. The cubic root of 1204212500 is about 1063.9005751123.

Adding to 1204212500 its reverse (52124021), we get a palindrome (1256336521).

It can be divided in two parts, 12042 and 12500, that added together give a palindrome (24542).

The spelling of 1204212500 in words is "one billion, two hundred four million, two hundred twelve thousand, five hundred".