221232332030123 has 4 divisors (see below), whose sum is σ = 228861033134640. Its totient is φ = 213603630925608.

The previous prime is 221232332030077. The next prime is 221232332030137. The reversal of 221232332030123 is 321030233232122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221232332030123 - 2⁸ = 221232332029867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 7628701104487 = 221232332030123 / (2 + 2 + 1 + 2 + 3 + 2 + 3 + 3 + 2 + 0 + 3 + 0 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221232332030623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3814350552215 + ... + 3814350552272.

It is an arithmetic number, because the mean of its divisors is an integer number (57215258283660).

Almost surely, 2^{221232332030123} is an apocalyptic number.

221232332030123 is a deficient number, since it is larger than the sum of its proper divisors (7628701104517).

221232332030123 is an equidigital number, since it uses as much as digits as its factorization.

221232332030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628701104516.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 221232332030123 its reverse (321030233232122), we get a palindrome (542262565262245).

The spelling of 221232332030123 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, three hundred thirty-two million, thirty thousand, one hundred twenty-three".