221475226147 has 8 divisors (see below), whose sum is σ = 254048548352. Its totient is φ = 189135405000.

The previous prime is 221475226139. The next prime is 221475226199. The reversal of 221475226147 is 741622574122.

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 221475226147 - 2³ = 221475226139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221475226117) 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, 58373229 + ... + 58377022.

It is an arithmetic number, because the mean of its divisors is an integer number (31756068544).

Almost surely, 2^221475226147 is an apocalyptic number.

221475226147 is a deficient number, since it is larger than the sum of its proper divisors (32573322205).

221475226147 is a wasteful number, since it uses less digits than its factorization.

221475226147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116750529.

The product of its digits is 376320, while the sum is 43.

The spelling of 221475226147 in words is "two hundred twenty-one billion, four hundred seventy-five million, two hundred twenty-six thousand, one hundred forty-seven".