22012312144450 has 36 divisors (see below), whose sum is σ = 43492977470502. Its totient is φ = 8286988096000.

The previous prime is 22012312144439. The next prime is 22012312144453. The reversal of 22012312144450 is 5444121321022.

It can be written as a sum of positive squares in 9 ways, for example, as 12755633679009 + 9256678465441 = 3571503^2 + 3042479^2 .

It is not an unprimeable number, because it can be changed into a prime (22012312144453) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 761657251 + ... + 761686150.

Almost surely, 2^{22012312144450} is an apocalyptic number.

22012312144450 is a deficient number, since it is larger than the sum of its proper divisors (21480665326052).

22012312144450 is a wasteful number, since it uses less digits than its factorization.

22012312144450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523343447 (or 1523343425 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 22012312144450 its reverse (5444121321022), we get a palindrome (27456433465472).

The spelling of 22012312144450 in words is "twenty-two trillion, twelve billion, three hundred twelve million, one hundred forty-four thousand, four hundred fifty".