221322330031121 has 16 divisors (see below), whose sum is σ = 246629911615488. Its totient is φ = 196881056408400.

The previous prime is 221322330031111. The next prime is 221322330031171. The reversal of 221322330031121 is 121130033223122.

It is a cyclic number.

It is not a de Polignac number, because 221322330031121 - 2¹⁰ = 221322330030097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221322330031111) 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, 41121035 + ... + 46190736.

It is an arithmetic number, because the mean of its divisors is an integer number (15414369475968).

Almost surely, 2^{221322330031121} is an apocalyptic number.

It is an amenable number.

221322330031121 is a deficient number, since it is larger than the sum of its proper divisors (25307581584367).

221322330031121 is a wasteful number, since it uses less digits than its factorization.

221322330031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87316732.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 221322330031121 its reverse (121130033223122), we get a palindrome (342452363254243).

The spelling of 221322330031121 in words is "two hundred twenty-one trillion, three hundred twenty-two billion, three hundred thirty million, thirty-one thousand, one hundred twenty-one".