22051544243403 has 4 divisors (see below), whose sum is σ = 29402058991208. Its totient is φ = 14701029495600.

The previous prime is 22051544243389. The next prime is 22051544243413. The reversal of 22051544243403 is 30434244515022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22051544243403 - 2²¹ = 22051542146251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22051544243413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3675257373898 + ... + 3675257373903.

It is an arithmetic number, because the mean of its divisors is an integer number (7350514747802).

Almost surely, 2^{22051544243403} is an apocalyptic number.

22051544243403 is a deficient number, since it is larger than the sum of its proper divisors (7350514747805).

22051544243403 is an equidigital number, since it uses as much as digits as its factorization.

22051544243403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7350514747804.

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 22051544243403 its reverse (30434244515022), we get a palindrome (52485788758425).

The spelling of 22051544243403 in words is "twenty-two trillion, fifty-one billion, five hundred forty-four million, two hundred forty-three thousand, four hundred three".