20112021100097 has 2 divisors, whose sum is σ = 20112021100098. Its totient is φ = 20112021100096.

The previous prime is 20112021100049. The next prime is 20112021100141. The reversal of 20112021100097 is 79000112021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19721051023921 + 390970076176 = 4440839^2 + 625276^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112021100097 - 2³² = 20107726132801 is a prime.

It is not a weakly prime, because it can be changed into another prime (20112021108097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056010550048 + 10056010550049.

It is an arithmetic number, because the mean of its divisors is an integer number (10056010550049).

Almost surely, 2^{20112021100097} is an apocalyptic number.

It is an amenable number.

20112021100097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112021100097 is an equidigital number, since it uses as much as digits as its factorization.

20112021100097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 20112021100097 its reverse (79000112021102), we get a palindrome (99112133121199).

The spelling of 20112021100097 in words is "twenty trillion, one hundred twelve billion, twenty-one million, one hundred thousand, ninety-seven".