22011222536 has 8 divisors (see below), whose sum is σ = 41271042270. Its totient is φ = 11005611264.

The previous prime is 22011222529. The next prime is 22011222553. The reversal of 22011222536 is 63522211022.

It can be written as a sum of positive squares in only one way, i.e., 21846613636 + 164608900 = 147806^2 + 12830^2 .

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

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1375701401 + ... + 1375701416.

Almost surely, 2^22011222536 is an apocalyptic number.

It is an amenable number.

22011222536 is a deficient number, since it is larger than the sum of its proper divisors (19259819734).

22011222536 is a wasteful number, since it uses less digits than its factorization.

22011222536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751402823 (or 2751402819 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 22011222536 its reverse (63522211022), we get a palindrome (85533433558).

The spelling of 22011222536 in words is "twenty-two billion, eleven million, two hundred twenty-two thousand, five hundred thirty-six".