444012110321421 has 16 divisors (see below), whose sum is σ = 611182864332800. Its totient is φ = 286426884371760.

The previous prime is 444012110321393. The next prime is 444012110321443. The reversal of 444012110321421 is 124123011210444.

It is not a de Polignac number, because 444012110321421 - 2¹³ = 444012110313229 is a prime.

It is a super-2 number, since 2×444012110321421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444012110328421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270357271 + ... + 271994628.

It is an arithmetic number, because the mean of its divisors is an integer number (38198929020800).

Almost surely, 2^{444012110321421} is an apocalyptic number.

It is an amenable number.

444012110321421 is a deficient number, since it is larger than the sum of its proper divisors (167170754011379).

444012110321421 is a wasteful number, since it uses less digits than its factorization.

444012110321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542360736.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 444012110321421 its reverse (124123011210444), we get a palindrome (568135121531865).

The spelling of 444012110321421 in words is "four hundred forty-four trillion, twelve billion, one hundred ten million, three hundred twenty-one thousand, four hundred twenty-one".