242121024442 has 24 divisors (see below), whose sum is σ = 405743819796. Its totient is φ = 108250824000.

The previous prime is 242121024421. The next prime is 242121024463. The reversal of 242121024442 is 244420121242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242121024421) and next prime (242121024463).

It can be written as a sum of positive squares in 2 ways, for example, as 154049185081 + 88071839361 = 392491^2 + 296769^2 .

It is a super-2 number, since 2×242121024442² (a number of 24 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 242121024442.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8186059 + ... + 8215582.

Almost surely, 2^242121024442 is an apocalyptic number.

242121024442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242121024442 is a deficient number, since it is larger than the sum of its proper divisors (163622795354).

242121024442 is a wasteful number, since it uses less digits than its factorization.

242121024442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16401726 (or 16401715 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 242121024442 its reverse (244420121242), we get a palindrome (486541145684).

The spelling of 242121024442 in words is "two hundred forty-two billion, one hundred twenty-one million, twenty-four thousand, four hundred forty-two".