1242231421202 has 16 divisors (see below), whose sum is σ = 1902939917400. Its totient is φ = 608056310400.

The previous prime is 1242231421201. The next prime is 1242231421219. The reversal of 1242231421202 is 2021241322421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1229173559761 + 13057861441 = 1108681^2 + 114271^2 .

It is not an unprimeable number, because it can be changed into a prime (1242231421201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34530677 + ... + 34566632.

Almost surely, 2^{1242231421202} is an apocalyptic number.

1242231421202 is a deficient number, since it is larger than the sum of its proper divisors (660708496198).

1242231421202 is a wasteful number, since it uses less digits than its factorization.

1242231421202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69097501.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1242231421202 its reverse (2021241322421), we get a palindrome (3263472743623).

The spelling of 1242231421202 in words is "one trillion, two hundred forty-two billion, two hundred thirty-one million, four hundred twenty-one thousand, two hundred two".