22020123123266 has 4 divisors (see below), whose sum is σ = 33030184684902. Its totient is φ = 11010061561632.

The previous prime is 22020123123263. The next prime is 22020123123289. The reversal of 22020123123266 is 66232132102022.

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

It can be written as a sum of positive squares in only one way, i.e., 21754491117241 + 265632006025 = 4664171^2 + 515395^2 .

It is not an unprimeable number, because it can be changed into a prime (22020123123263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505030780815 + ... + 5505030780818.

Almost surely, 2^{22020123123266} is an apocalyptic number.

22020123123266 is a deficient number, since it is larger than the sum of its proper divisors (11010061561636).

22020123123266 is a wasteful number, since it uses less digits than its factorization.

22020123123266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010061561635.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 22020123123266 its reverse (66232132102022), we get a palindrome (88252255225288).

The spelling of 22020123123266 in words is "twenty-two trillion, twenty billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred sixty-six".