22321202312 has 8 divisors (see below), whose sum is σ = 41852254350. Its totient is φ = 11160601152.

The previous prime is 22321202279. The next prime is 22321202339. The reversal of 22321202312 is 21320212322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16862061316 + 5459140996 = 129854^2 + 73886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×22321202312³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395075137 + ... + 1395075152.

Almost surely, 2^22321202312 is an apocalyptic number.

It is an amenable number.

22321202312 is a deficient number, since it is larger than the sum of its proper divisors (19531052038).

22321202312 is a wasteful number, since it uses less digits than its factorization.

22321202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790150295 (or 2790150291 counting only the distinct ones).

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

Adding to 22321202312 its reverse (21320212322), we get a palindrome (43641414634).

The spelling of 22321202312 in words is "twenty-two billion, three hundred twenty-one million, two hundred two thousand, three hundred twelve".