221232102130001 has 2 divisors, whose sum is σ = 221232102130002. Its totient is φ = 221232102130000.

The previous prime is 221232102129947. The next prime is 221232102130021. The reversal of 221232102130001 is 100031201232122.

It is an a-pointer prime, because the next prime (221232102130021) can be obtained adding 221232102130001 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215530322264401 + 5701779865600 = 14680951^2 + 2387840^2 .

It is a cyclic number.

It is not a de Polignac number, because 221232102130001 - 2²² = 221232097935697 is a prime.

It is a super-2 number, since 2×221232102130001² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221232102130021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616051065000 + 110616051065001.

It is an arithmetic number, because the mean of its divisors is an integer number (110616051065001).

Almost surely, 2^{221232102130001} is an apocalyptic number.

It is an amenable number.

221232102130001 is a deficient number, since it is larger than the sum of its proper divisors (1).

221232102130001 is an equidigital number, since it uses as much as digits as its factorization.

221232102130001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221232102130001 its reverse (100031201232122), we get a palindrome (321263303362123).

The spelling of 221232102130001 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, one hundred two million, one hundred thirty thousand, one".