22615949012 has 6 divisors (see below), whose sum is σ = 39577910778. Its totient is φ = 11307974504.

The previous prime is 22615949011. The next prime is 22615949023. The reversal of 22615949012 is 21094951622.

It can be written as a sum of positive squares in only one way, i.e., 22615948996 + 16 = 150386^2 + 4^2 .

It is a super-2 number, since 2×22615949012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22615949011) by changing a digit.

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, 2826993623 + ... + 2826993630.

It is an arithmetic number, because the mean of its divisors is an integer number (6596318463).

Almost surely, 2^22615949012 is an apocalyptic number.

It is an amenable number.

22615949012 is a deficient number, since it is larger than the sum of its proper divisors (16961961766).

22615949012 is a wasteful number, since it uses less digits than its factorization.

22615949012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5653987257 (or 5653987255 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 22615949012 in words is "twenty-two billion, six hundred fifteen million, nine hundred forty-nine thousand, twelve".