1421144421135 has 32 divisors (see below), whose sum is σ = 2407658722560. Its totient is φ = 713337174528.

The previous prime is 1421144421133. The next prime is 1421144421139. The reversal of 1421144421135 is 5311244411241.

It is not a de Polignac number, because 1421144421135 - 2¹ = 1421144421133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421144421096 and 1421144421105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421144421133) 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 31 ways as a sum of consecutive naturals, for example, 11434356 + ... + 11557974.

It is an arithmetic number, because the mean of its divisors is an integer number (75239335080).

Almost surely, 2^{1421144421135} is an apocalyptic number.

1421144421135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421144421135 is a deficient number, since it is larger than the sum of its proper divisors (986514301425).

1421144421135 is a wasteful number, since it uses less digits than its factorization.

1421144421135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168727.

The product of its digits is 15360, while the sum is 33.

Adding to 1421144421135 its reverse (5311244411241), we get a palindrome (6732388832376).

The spelling of 1421144421135 in words is "one trillion, four hundred twenty-one billion, one hundred forty-four million, four hundred twenty-one thousand, one hundred thirty-five".