1242422000000 has 224 divisors, whose sum is σ = 3146619879000. Its totient is φ = 488499200000.

The previous prime is 1242421999991. The next prime is 1242422000011. The reversal of 1242422000000 is 2242421.

It is a happy number.

It is a super-2 number, since 2×1242422000000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 117994736 + ... + 118005264.

Almost surely, 2^{1242422000000} is an apocalyptic number.

1242422000000 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 1242422000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573309939500).

1242422000000 is an abundant number, since it is smaller than the sum of its proper divisors (1904197879000).

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

1242422000000 is an frugal number, since it uses more digits than its factorization.

1242422000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10632 (or 10595 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 1242422000000 its reverse (2242421), we get a palindrome (1242424242421).

The spelling of 1242422000000 in words is "one trillion, two hundred forty-two billion, four hundred twenty-two million", and thus it is an aban number.