22202122312 has 8 divisors (see below), whose sum is σ = 41628979350. Its totient is φ = 11101061152.

The previous prime is 22202122309. The next prime is 22202122343. The reversal of 22202122312 is 21322120222.

It can be written as a sum of positive squares in only one way, i.e., 18259035876 + 3943086436 = 135126^2 + 62794^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22202122312.

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, 1387632637 + ... + 1387632652.

Almost surely, 2^22202122312 is an apocalyptic number.

It is an amenable number.

22202122312 is a deficient number, since it is larger than the sum of its proper divisors (19426857038).

22202122312 is a wasteful number, since it uses less digits than its factorization.

22202122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775265295 (or 2775265291 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22202122312 its reverse (21322120222), we get a palindrome (43524242534).

The spelling of 22202122312 in words is "twenty-two billion, two hundred two million, one hundred twenty-two thousand, three hundred twelve".