4244534422421 has 16 divisors (see below), whose sum is σ = 4348309130880. Its totient is φ = 4140992540160.

The previous prime is 4244534422357. The next prime is 4244534422441. The reversal of 4244534422421 is 1242244354424.

It is a cyclic number.

It is not a de Polignac number, because 4244534422421 - 2⁶ = 4244534422357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244534422441) 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, 157011176 + ... + 157038206.

It is an arithmetic number, because the mean of its divisors is an integer number (271769320680).

Almost surely, 2^{4244534422421} is an apocalyptic number.

It is an amenable number.

4244534422421 is a deficient number, since it is larger than the sum of its proper divisors (103774708459).

4244534422421 is a wasteful number, since it uses less digits than its factorization.

4244534422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31196.

The product of its digits is 983040, while the sum is 41.

Adding to 4244534422421 its reverse (1242244354424), we get a palindrome (5486778776845).

The spelling of 4244534422421 in words is "four trillion, two hundred forty-four billion, five hundred thirty-four million, four hundred twenty-two thousand, four hundred twenty-one".