22197487839241 has 81 divisors (see below), whose sum is σ = 27032754627669. Its totient is φ = 18204930744000.

The previous prime is 22197487839143. The next prime is 22197487839253. The reversal of 22197487839241 is 14293878479122.

The square root of 22197487839241 is 4711421.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4871342025 + 22192616497216 = 69795^2 + 4710904^2 .

It is not a de Polignac number, because 22197487839241 - 2¹¹ = 22197487837193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22197487839641) by changing a digit.

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 in 80 ways as a sum of consecutive naturals, for example, 31665460191 + ... + 31665460891.

Almost surely, 2^{22197487839241} is an apocalyptic number.

22197487839241 is the 4711421-st square number.

22197487839241 is the 2355711-st centered octagonal number.

It is an amenable number.

22197487839241 is a deficient number, since it is larger than the sum of its proper divisors (4835266788428).

22197487839241 is an frugal number, since it uses more digits than its factorization.

22197487839241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 772 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 67.

The spelling of 22197487839241 in words is "twenty-two trillion, one hundred ninety-seven billion, four hundred eighty-seven million, eight hundred thirty-nine thousand, two hundred forty-one".