40221131441441 has 2 divisors, whose sum is σ = 40221131441442. Its totient is φ = 40221131441440.

The previous prime is 40221131441369. The next prime is 40221131441471. The reversal of 40221131441441 is 14414413112204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36025684579600 + 4195446861841 = 6002140^2 + 2048279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40221131441441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40221131441398 and 40221131441407.

It is not a weakly prime, because it can be changed into another prime (40221131441471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110565720720 + 20110565720721.

It is an arithmetic number, because the mean of its divisors is an integer number (20110565720721).

Almost surely, 2^{40221131441441} is an apocalyptic number.

It is an amenable number.

40221131441441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40221131441441 is an equidigital number, since it uses as much as digits as its factorization.

40221131441441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 40221131441441 its reverse (14414413112204), we get a palindrome (54635544553645).

The spelling of 40221131441441 in words is "forty trillion, two hundred twenty-one billion, one hundred thirty-one million, four hundred forty-one thousand, four hundred forty-one".