221530071265105 has 8 divisors (see below), whose sum is σ = 270341781883200. Its totient is φ = 174220259435376.

The previous prime is 221530071265099. The next prime is 221530071265117. The reversal of 221530071265105 is 501562170035122.

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

It is a cyclic number.

It is not a de Polignac number, because 221530071265105 - 2¹³ = 221530071256913 is a prime.

It is a super-2 number, since 2×221530071265105² (a number of 29 digits) contains 22 as substring.

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, 375474696765 + ... + 375474697354.

It is an arithmetic number, because the mean of its divisors is an integer number (33792722735400).

Almost surely, 2^{221530071265105} is an apocalyptic number.

It is an amenable number.

221530071265105 is a deficient number, since it is larger than the sum of its proper divisors (48811710618095).

221530071265105 is an equidigital number, since it uses as much as digits as its factorization.

221530071265105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750949394183.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 221530071265105 in words is "two hundred twenty-one trillion, five hundred thirty billion, seventy-one million, two hundred sixty-five thousand, one hundred five".