221431467506199 has 8 divisors (see below), whose sum is σ = 295255697253120. Its totient is φ = 147614108048376.

The previous prime is 221431467506159. The next prime is 221431467506201. The reversal of 221431467506199 is 991605764134122.

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

It is not a de Polignac number, because 221431467506199 - 2⁸ = 221431467505943 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221431467506159) 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, 1717497069 + ... + 1717625990.

It is an arithmetic number, because the mean of its divisors is an integer number (36906962156640).

Almost surely, 2^{221431467506199} is an apocalyptic number.

221431467506199 is a deficient number, since it is larger than the sum of its proper divisors (73824229746921).

221431467506199 is a wasteful number, since it uses less digits than its factorization.

221431467506199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435144549.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 221431467506199 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, four hundred sixty-seven million, five hundred six thousand, one hundred ninety-nine".