221100322103123 has 16 divisors (see below), whose sum is σ = 228604609833600. Its totient is φ = 213697169809920.

The previous prime is 221100322103071. The next prime is 221100322103137. The reversal of 221100322103123 is 321301223001122.

It is a cyclic number.

It is not a de Polignac number, because 221100322103123 - 2²⁸ = 221100053667667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221100322103153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26716358 + ... + 33999476.

It is an arithmetic number, because the mean of its divisors is an integer number (14287788114600).

Almost surely, 2^{221100322103123} is an apocalyptic number.

221100322103123 is a deficient number, since it is larger than the sum of its proper divisors (7504287730477).

221100322103123 is a wasteful number, since it uses less digits than its factorization.

221100322103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7290062.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221100322103123 its reverse (321301223001122), we get a palindrome (542401545104245).

The spelling of 221100322103123 in words is "two hundred twenty-one trillion, one hundred billion, three hundred twenty-two million, one hundred three thousand, one hundred twenty-three".