22250243461556 has 24 divisors (see below), whose sum is σ = 43513779899520. Its totient is φ = 9867070270400.

The previous prime is 22250243461519. The next prime is 22250243461603. The reversal of 22250243461556 is 65516434205222.

It is a super-2 number, since 2×22250243461556² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22250243461556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6166917116 + ... + 6166920723.

It is an arithmetic number, because the mean of its divisors is an integer number (1813074162480).

Almost surely, 2^{22250243461556} is an apocalyptic number.

It is an amenable number.

22250243461556 is a deficient number, since it is larger than the sum of its proper divisors (21263536437964).

22250243461556 is a wasteful number, since it uses less digits than its factorization.

22250243461556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12333837895 (or 12333837893 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

Adding to 22250243461556 its reverse (65516434205222), we get a palindrome (87766677666778).

The spelling of 22250243461556 in words is "twenty-two trillion, two hundred fifty billion, two hundred forty-three million, four hundred sixty-one thousand, five hundred fifty-six".