20122011220097 has 2 divisors, whose sum is σ = 20122011220098. Its totient is φ = 20122011220096.

The previous prime is 20122011220013. The next prime is 20122011220183. The reversal of 20122011220097 is 79002211022102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17794299552241 + 2327711667856 = 4218329^2 + 1525684^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122011220097 - 2²² = 20122007025793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122011228097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061005610048 + 10061005610049.

It is an arithmetic number, because the mean of its divisors is an integer number (10061005610049).

Almost surely, 2^{20122011220097} is an apocalyptic number.

It is an amenable number.

20122011220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122011220097 is an equidigital number, since it uses as much as digits as its factorization.

20122011220097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 20122011220097 its reverse (79002211022102), we get a palindrome (99124222242199).

The spelling of 20122011220097 in words is "twenty trillion, one hundred twenty-two billion, eleven million, two hundred twenty thousand, ninety-seven".