22430444212 has 18 divisors (see below), whose sum is σ = 43146165314. Its totient is φ = 10195656240.

The previous prime is 22430444203. The next prime is 22430444213. The reversal of 22430444212 is 21244403422.

It can be written as a sum of positive squares in only one way, i.e., 14286464676 + 8143979536 = 119526^2 + 90244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22430444213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23171463 + ... + 23172430.

Almost surely, 2^22430444212 is an apocalyptic number.

22430444212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22430444212 is a deficient number, since it is larger than the sum of its proper divisors (20715721102).

22430444212 is a wasteful number, since it uses less digits than its factorization.

22430444212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46343919 (or 46343906 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22430444212 its reverse (21244403422), we get a palindrome (43674847634).

The spelling of 22430444212 in words is "twenty-two billion, four hundred thirty million, four hundred forty-four thousand, two hundred twelve".