221647123676231 has 8 divisors (see below), whose sum is σ = 241845000190464. Its totient is φ = 201457270161720.

The previous prime is 221647123676189. The next prime is 221647123676233. The reversal of 221647123676231 is 132676321746122.

221647123676231 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 a cyclic number.

It is not a de Polignac number, because 221647123676231 - 2¹⁴ = 221647123659847 is a prime.

It is a super-2 number, since 2×221647123676231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221647123676233) 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, 2005692161 + ... + 2005802666.

It is an arithmetic number, because the mean of its divisors is an integer number (30230625023808).

Almost surely, 2^{221647123676231} is an apocalyptic number.

221647123676231 is a deficient number, since it is larger than the sum of its proper divisors (20197876514233).

221647123676231 is a wasteful number, since it uses less digits than its factorization.

221647123676231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011499861.

The product of its digits is 6096384, while the sum is 53.

The spelling of 221647123676231 in words is "two hundred twenty-one trillion, six hundred forty-seven billion, one hundred twenty-three million, six hundred seventy-six thousand, two hundred thirty-one".