220121120121197 has 2 divisors, whose sum is σ = 220121120121198. Its totient is φ = 220121120121196.

The previous prime is 220121120121193. The next prime is 220121120121271. The reversal of 220121120121197 is 791121021121022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163549978059556 + 56571142061641 = 12788666^2 + 7521379^2 .

It is a cyclic number.

It is not a de Polignac number, because 220121120121197 - 2² = 220121120121193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220121120121193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060560060598 + 110060560060599.

It is an arithmetic number, because the mean of its divisors is an integer number (110060560060599).

Almost surely, 2^{220121120121197} is an apocalyptic number.

It is an amenable number.

220121120121197 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121120121197 is an equidigital number, since it uses as much as digits as its factorization.

220121120121197 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 32.

The spelling of 220121120121197 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, one hundred ninety-seven".