220101212231 has 2 divisors, whose sum is σ = 220101212232. Its totient is φ = 220101212230.

The previous prime is 220101212203. The next prime is 220101212237. The reversal of 220101212231 is 132212101022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220101212231 - 2³⁰ = 219027470407 is a prime.

It is a super-3 number, since 3×220101212231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220101212237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050606115 + 110050606116.

It is an arithmetic number, because the mean of its divisors is an integer number (110050606116).

Almost surely, 2^220101212231 is an apocalyptic number.

220101212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101212231 is an equidigital number, since it uses as much as digits as its factorization.

220101212231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 220101212231 its reverse (132212101022), we get a palindrome (352313313253).

The spelling of 220101212231 in words is "two hundred twenty billion, one hundred one million, two hundred twelve thousand, two hundred thirty-one".