20011022102231 has 2 divisors, whose sum is σ = 20011022102232. Its totient is φ = 20011022102230.

The previous prime is 20011022102059. The next prime is 20011022102237. The reversal of 20011022102231 is 13220122011002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20011022102231 - 2²² = 20011017907927 is a prime.

It is a super-2 number, since 2×20011022102231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011022102237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005511051115 + 10005511051116.

It is an arithmetic number, because the mean of its divisors is an integer number (10005511051116).

Almost surely, 2^{20011022102231} is an apocalyptic number.

20011022102231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011022102231 is an equidigital number, since it uses as much as digits as its factorization.

20011022102231 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 20011022102231 its reverse (13220122011002), we get a palindrome (33231144113233).

The spelling of 20011022102231 in words is "twenty trillion, eleven billion, twenty-two million, one hundred two thousand, two hundred thirty-one".