1242044422021 has 16 divisors (see below), whose sum is σ = 1342099927168. Its totient is φ = 1142634600000.

The previous prime is 1242044422019. The next prime is 1242044422033. The reversal of 1242044422021 is 1202244402421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1242044422021 - 2¹ = 1242044422019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242044422001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55188271 + ... + 55210771.

It is an arithmetic number, because the mean of its divisors is an integer number (83881245448).

Almost surely, 2^{1242044422021} is an apocalyptic number.

It is an amenable number.

1242044422021 is a deficient number, since it is larger than the sum of its proper divisors (100055505147).

1242044422021 is a wasteful number, since it uses less digits than its factorization.

1242044422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36652.

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

Adding to 1242044422021 its reverse (1202244402421), we get a palindrome (2444288824442).

The spelling of 1242044422021 in words is "one trillion, two hundred forty-two billion, forty-four million, four hundred twenty-two thousand, twenty-one".