221886062125513 has 8 divisors (see below), whose sum is σ = 229548391732296. Its totient is φ = 214330897968000.

The previous prime is 221886062125471. The next prime is 221886062125613. The reversal of 221886062125513 is 315521260688122.

It can be written as a sum of positive squares in 4 ways, for example, as 267699655609 + 221618362469904 = 517397^2 + 14886852^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221886062125513 is a prime.

It is a super-3 number, since 3×221886062125513³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221886062125613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26791358106 + ... + 26791366387.

It is an arithmetic number, because the mean of its divisors is an integer number (28693548966537).

Almost surely, 2^{221886062125513} is an apocalyptic number.

It is an amenable number.

221886062125513 is a deficient number, since it is larger than the sum of its proper divisors (7662329606783).

221886062125513 is a wasteful number, since it uses less digits than its factorization.

221886062125513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53582724635.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 221886062125513 in words is "two hundred twenty-one trillion, eight hundred eighty-six billion, sixty-two million, one hundred twenty-five thousand, five hundred thirteen".