1421444124321 has 64 divisors (see below), whose sum is σ = 2089274449920. Its totient is φ = 854356688640.

The previous prime is 1421444124283. The next prime is 1421444124337. The reversal of 1421444124321 is 1234214441241.

It is not a de Polignac number, because 1421444124321 - 2⁷ = 1421444124193 is a prime.

It is a super-2 number, since 2×1421444124321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421444124341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108558651 + ... + 108571743.

It is an arithmetic number, because the mean of its divisors is an integer number (32644913280).

Almost surely, 2^{1421444124321} is an apocalyptic number.

It is an amenable number.

1421444124321 is a deficient number, since it is larger than the sum of its proper divisors (667830325599).

1421444124321 is a wasteful number, since it uses less digits than its factorization.

1421444124321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13566.

The product of its digits is 24576, while the sum is 33.

Adding to 1421444124321 its reverse (1234214441241), we get a palindrome (2655658565562).

The spelling of 1421444124321 in words is "one trillion, four hundred twenty-one billion, four hundred forty-four million, one hundred twenty-four thousand, three hundred twenty-one".