1242242221132 has 48 divisors (see below), whose sum is σ = 2445992640000. Its totient is φ = 547169816000.

The previous prime is 1242242221079. The next prime is 1242242221141. The reversal of 1242242221132 is 2311222422421.

It is a super-2 number, since 2×1242242221132² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1242242221132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764882 + ... + 3182617.

It is an arithmetic number, because the mean of its divisors is an integer number (50958180000).

Almost surely, 2^{1242242221132} is an apocalyptic number.

It is an amenable number.

1242242221132 is a deficient number, since it is larger than the sum of its proper divisors (1203750418868).

1242242221132 is a wasteful number, since it uses less digits than its factorization.

1242242221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947662 (or 5947660 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 1242242221132 its reverse (2311222422421), we get a palindrome (3553464643553).

The spelling of 1242242221132 in words is "one trillion, two hundred forty-two billion, two hundred forty-two million, two hundred twenty-one thousand, one hundred thirty-two".