2215663224056 has 16 divisors (see below), whose sum is σ = 4176119168640. Its totient is φ = 1102031445760.

The previous prime is 2215663224007. The next prime is 2215663224067. The reversal of 2215663224056 is 6504223665122.

It is a super-2 number, since 2×2215663224056² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215663223998 and 2215663224016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725019161 + ... + 725022216.

It is an arithmetic number, because the mean of its divisors is an integer number (261007448040).

Almost surely, 2^{2215663224056} is an apocalyptic number.

It is an amenable number.

2215663224056 is a deficient number, since it is larger than the sum of its proper divisors (1960455944584).

2215663224056 is a wasteful number, since it uses less digits than its factorization.

2215663224056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450041574 (or 1450041570 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

Adding to 2215663224056 its reverse (6504223665122), we get a palindrome (8719886889178).

The spelling of 2215663224056 in words is "two trillion, two hundred fifteen billion, six hundred sixty-three million, two hundred twenty-four thousand, fifty-six".