220121011222097 has 2 divisors, whose sum is σ = 220121011222098. Its totient is φ = 220121011222096.

The previous prime is 220121011221989. The next prime is 220121011222111. The reversal of 220121011222097 is 790222110121022.

220121011222097 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., 204449990557201 + 15671020664896 = 14298601^2 + 3958664^2 .

It is a cyclic number.

It is not a de Polignac number, because 220121011222097 - 2³² = 220116716254801 is a prime.

It is a super-2 number, since 2×220121011222097² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220121011222297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060505611048 + 110060505611049.

It is an arithmetic number, because the mean of its divisors is an integer number (110060505611049).

Almost surely, 2^{220121011222097} is an apocalyptic number.

It is an amenable number.

220121011222097 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121011222097 is an equidigital number, since it uses as much as digits as its factorization.

220121011222097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 220121011222097 in words is "two hundred twenty trillion, one hundred twenty-one billion, eleven million, two hundred twenty-two thousand, ninety-seven".