221422053125165 has 8 divisors (see below), whose sum is σ = 265774402015488. Its totient is φ = 177092350323280.

The previous prime is 221422053125113. The next prime is 221422053125167. The reversal of 221422053125165 is 561521350224122.

221422053125165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 221422053125165 - 2⁶ = 221422053125101 is a prime.

It is a super-2 number, since 2×221422053125165² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422053125167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5661500597 + ... + 5661539706.

It is an arithmetic number, because the mean of its divisors is an integer number (33221800251936).

Almost surely, 2^{221422053125165} is an apocalyptic number.

It is an amenable number.

221422053125165 is a deficient number, since it is larger than the sum of its proper divisors (44352348890323).

221422053125165 is a wasteful number, since it uses less digits than its factorization.

221422053125165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323044219.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 221422053125165 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, fifty-three million, one hundred twenty-five thousand, one hundred sixty-five".