1242212300 has 72 divisors (see below), whose sum is σ = 3085635840. Its totient is φ = 425217600.

The previous prime is 1242212263. The next prime is 1242212329. The reversal of 1242212300 is 32122421.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 642335 + ... + 644265.

Almost surely, 2^1242212300 is an apocalyptic number.

1242212300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242212300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542817920).

1242212300 is an abundant number, since it is smaller than the sum of its proper divisors (1843423540).

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

1242212300 is a wasteful number, since it uses less digits than its factorization.

1242212300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1242212300 is about 35245.0322740667. The cubic root of 1242212300 is about 1074.9756042778.

Adding to 1242212300 its reverse (32122421), we get a palindrome (1274334721).

The spelling of 1242212300 in words is "one billion, two hundred forty-two million, two hundred twelve thousand, three hundred".