22020320123012 has 6 divisors (see below), whose sum is σ = 38535560215278. Its totient is φ = 11010160061504.

The previous prime is 22020320122993. The next prime is 22020320123017. The reversal of 22020320123012 is 21032102302022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11173349134336 + 10846970988676 = 3342656^2 + 3293474^2 .

It is not an unprimeable number, because it can be changed into a prime (22020320123017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752540015373 + ... + 2752540015380.

It is an arithmetic number, because the mean of its divisors is an integer number (6422593369213).

Almost surely, 2^{22020320123012} is an apocalyptic number.

It is an amenable number.

22020320123012 is a deficient number, since it is larger than the sum of its proper divisors (16515240092266).

22020320123012 is a wasteful number, since it uses less digits than its factorization.

22020320123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505080030757 (or 5505080030755 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22020320123012 its reverse (21032102302022), we get a palindrome (43052422425034).

The spelling of 22020320123012 in words is "twenty-two trillion, twenty billion, three hundred twenty million, one hundred twenty-three thousand, twelve".