221331230123 has 8 divisors (see below), whose sum is σ = 228370723392. Its totient is φ = 214388833536.

The previous prime is 221331230117. The next prime is 221331230161. The reversal of 221331230123 is 321032133122.

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 221331230123 - 2¹² = 221331226027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221331236123) 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, 24269540 + ... + 24278657.

It is an arithmetic number, because the mean of its divisors is an integer number (28546340424).

Almost surely, 2^221331230123 is an apocalyptic number.

221331230123 is a deficient number, since it is larger than the sum of its proper divisors (7039493269).

221331230123 is an equidigital number, since it uses as much as digits as its factorization.

221331230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48548341.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221331230123 its reverse (321032133122), we get a palindrome (542363363245).

The spelling of 221331230123 in words is "two hundred twenty-one billion, three hundred thirty-one million, two hundred thirty thousand, one hundred twenty-three".