22051544243413 has 2 divisors, whose sum is σ = 22051544243414. Its totient is φ = 22051544243412.

The previous prime is 22051544243389. The next prime is 22051544243423. The reversal of 22051544243413 is 31434244515022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22009074452689 + 42469790724 = 4691383^2 + 206082^2 .

It is a cyclic number.

It is not a de Polignac number, because 22051544243413 - 2⁵ = 22051544243381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22051544243423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025772121706 + 11025772121707.

It is an arithmetic number, because the mean of its divisors is an integer number (11025772121707).

Almost surely, 2^{22051544243413} is an apocalyptic number.

It is an amenable number.

22051544243413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22051544243413 is an equidigital number, since it uses as much as digits as its factorization.

22051544243413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 22051544243413 its reverse (31434244515022), we get a palindrome (53485788758435).

The spelling of 22051544243413 in words is "twenty-two trillion, fifty-one billion, five hundred forty-four million, two hundred forty-three thousand, four hundred thirteen".