220121121111097 has 2 divisors, whose sum is σ = 220121121111098. Its totient is φ = 220121121111096.

The previous prime is 220121121110993. The next prime is 220121121111113. The reversal of 220121121111097 is 790111121121022.

220121121111097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189640000328256 + 30481120782841 = 13770984^2 + 5520971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220121121111097 is a prime.

It is not a weakly prime, because it can be changed into another prime (220121121171097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060560555548 + 110060560555549.

It is an arithmetic number, because the mean of its divisors is an integer number (110060560555549).

Almost surely, 2^{220121121111097} is an apocalyptic number.

It is an amenable number.

220121121111097 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121121111097 is an equidigital number, since it uses as much as digits as its factorization.

220121121111097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 31.

The spelling of 220121121111097 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred eleven thousand, ninety-seven".