221193289151 has 8 divisors (see below), whose sum is σ = 223130570208. Its totient is φ = 219263868000.

The previous prime is 221193289087. The next prime is 221193289217. The reversal of 221193289151 is 151982391122.

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 221193289151 - 2⁶ = 221193289087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221193283151) 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, 1908440 + ... + 2021021.

It is an arithmetic number, because the mean of its divisors is an integer number (27891321276).

Almost surely, 2^221193289151 is an apocalyptic number.

221193289151 is a deficient number, since it is larger than the sum of its proper divisors (1937281057).

221193289151 is a wasteful number, since it uses less digits than its factorization.

221193289151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929953.

The product of its digits is 77760, while the sum is 44.

The spelling of 221193289151 in words is "two hundred twenty-one billion, one hundred ninety-three million, two hundred eighty-nine thousand, one hundred fifty-one".