221527427507475 has 48 divisors (see below), whose sum is σ = 366492084300000. Its totient is φ = 118072678021120.

The previous prime is 221527427507417. The next prime is 221527427507513. The reversal of 221527427507475 is 574705724725122.

It is a happy number.

It is not a de Polignac number, because 221527427507475 - 2¹⁸ = 221527427245331 is a prime.

It is a super-2 number, since 2×221527427507475² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2709807901 + ... + 2709889649.

It is an arithmetic number, because the mean of its divisors is an integer number (7635251756250).

Almost surely, 2^{221527427507475} is an apocalyptic number.

221527427507475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221527427507475 is a deficient number, since it is larger than the sum of its proper divisors (144964656792525).

221527427507475 is a wasteful number, since it uses less digits than its factorization.

221527427507475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104344 (or 104339 counting only the distinct ones).

The product of its (nonzero) digits is 76832000, while the sum is 60.

The spelling of 221527427507475 in words is "two hundred twenty-one trillion, five hundred twenty-seven billion, four hundred twenty-seven million, five hundred seven thousand, four hundred seventy-five".