2221344432131 has 32 divisors (see below), whose sum is σ = 2618641509120. Its totient is φ = 1862458099200.

The previous prime is 2221344432127. The next prime is 2221344432137. The reversal of 2221344432131 is 1312344431222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2221344432131 - 2² = 2221344432127 is a prime.

It is a super-2 number, since 2×2221344432131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221344432137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3724175 + ... + 4279271.

It is an arithmetic number, because the mean of its divisors is an integer number (81832547160).

Almost surely, 2^{2221344432131} is an apocalyptic number.

2221344432131 is a deficient number, since it is larger than the sum of its proper divisors (397297076989).

2221344432131 is a wasteful number, since it uses less digits than its factorization.

2221344432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555635.

The product of its digits is 27648, while the sum is 32.

Adding to 2221344432131 its reverse (1312344431222), we get a palindrome (3533688863353).

Subtracting from 2221344432131 its reverse (1312344431222), we obtain a palindrome (909000000909).

The spelling of 2221344432131 in words is "two trillion, two hundred twenty-one billion, three hundred forty-four million, four hundred thirty-two thousand, one hundred thirty-one".