221422606564745 has 8 divisors (see below), whose sum is σ = 274278325551360. Its totient is φ = 171423953469360.

The previous prime is 221422606564741. The next prime is 221422606564771. The reversal of 221422606564745 is 547465606224122.

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

It is not a de Polignac number, because 221422606564745 - 2² = 221422606564741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221422606564741) 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, 714266472635 + ... + 714266472944.

It is an arithmetic number, because the mean of its divisors is an integer number (34284790693920).

Almost surely, 2^{221422606564745} is an apocalyptic number.

It is an amenable number.

221422606564745 is a deficient number, since it is larger than the sum of its proper divisors (52855718986615).

221422606564745 is a wasteful number, since it uses less digits than its factorization.

221422606564745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428532945615.

The product of its (nonzero) digits is 38707200, while the sum is 56.

The spelling of 221422606564745 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred six million, five hundred sixty-four thousand, seven hundred forty-five".