12244122421455 has 16 divisors (see below), whose sum is σ = 19593684564480. Its totient is φ = 6529169061408.

The previous prime is 12244122421417. The next prime is 12244122421463. The reversal of 12244122421455 is 55412422144221.

It is not a de Polignac number, because 12244122421455 - 2³¹ = 12241974937807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64249395 + ... + 64439684.

It is an arithmetic number, because the mean of its divisors is an integer number (1224605285280).

Almost surely, 2^{12244122421455} is an apocalyptic number.

12244122421455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12244122421455 is a deficient number, since it is larger than the sum of its proper divisors (7349562143025).

12244122421455 is a wasteful number, since it uses less digits than its factorization.

12244122421455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128695430.

The product of its digits is 204800, while the sum is 39.

Adding to 12244122421455 its reverse (55412422144221), we get a palindrome (67656544565676).

The spelling of 12244122421455 in words is "twelve trillion, two hundred forty-four billion, one hundred twenty-two million, four hundred twenty-one thousand, four hundred fifty-five".