1242133324220 has 24 divisors (see below), whose sum is σ = 2609452318704. Its totient is φ = 496668122496.

The previous prime is 1242133324207. The next prime is 1242133324253. The reversal of 1242133324220 is 224233312421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11520449 + ... + 11627768.

It is an arithmetic number, because the mean of its divisors is an integer number (108727179946).

Almost surely, 2^{1242133324220} is an apocalyptic number.

1242133324220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242133324220 is an abundant number, since it is smaller than the sum of its proper divisors (1367318994484).

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

1242133324220 is a wasteful number, since it uses less digits than its factorization.

1242133324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23150909 (or 23150907 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1242133324220 its reverse (224233312421), we get a palindrome (1466366636641).

The spelling of 1242133324220 in words is "one trillion, two hundred forty-two billion, one hundred thirty-three million, three hundred twenty-four thousand, two hundred twenty".