22001312121322 has 64 divisors (see below), whose sum is σ = 36202784436000. Its totient is φ = 9981455368192.

The previous prime is 22001312121317. The next prime is 22001312121329. The reversal of 22001312121322 is 22312121310022.

It can be written as a sum of positive squares in 16 ways, for example, as 19539679777641 + 2461632343681 = 4420371^2 + 1568959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22001312121293 and 22001312121302.

It is not an unprimeable number, because it can be changed into a prime (22001312121329) 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 in 31 ways as a sum of consecutive naturals, for example, 2628901554 + ... + 2628909922.

Almost surely, 2^{22001312121322} is an apocalyptic number.

22001312121322 is a deficient number, since it is larger than the sum of its proper divisors (14201472314678).

22001312121322 is a wasteful number, since it uses less digits than its factorization.

22001312121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 22001312121322 its reverse (22312121310022), we get a palindrome (44313433431344).

The spelling of 22001312121322 in words is "twenty-two trillion, one billion, three hundred twelve million, one hundred twenty-one thousand, three hundred twenty-two".