220122110002121 has 2 divisors, whose sum is σ = 220122110002122. Its totient is φ = 220122110002120.

The previous prime is 220122110002117. The next prime is 220122110002127. The reversal of 220122110002121 is 121200011221022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159407391440896 + 60714718561225 = 12625664^2 + 7791965^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122110002121 - 2² = 220122110002117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220122110002121.

It is not a weakly prime, because it can be changed into another prime (220122110002127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061055001060 + 110061055001061.

It is an arithmetic number, because the mean of its divisors is an integer number (110061055001061).

Almost surely, 2^{220122110002121} is an apocalyptic number.

It is an amenable number.

220122110002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122110002121 is an equidigital number, since it uses as much as digits as its factorization.

220122110002121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220122110002121 its reverse (121200011221022), we get a palindrome (341322121223143).

The spelling of 220122110002121 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred ten million, two thousand, one hundred twenty-one".