220110202200121 has 2 divisors, whose sum is σ = 220110202200122. Its totient is φ = 220110202200120.

The previous prime is 220110202200079. The next prime is 220110202200127. The reversal of 220110202200121 is 121002202011022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210625311340096 + 9484890860025 = 14512936^2 + 3079755^2 .

It is a cyclic number.

It is not a de Polignac number, because 220110202200121 - 2³³ = 220101612265529 is a prime.

It is a super-2 number, since 2×220110202200121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220110202200095 and 220110202200104.

It is not a weakly prime, because it can be changed into another prime (220110202200127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055101100060 + 110055101100061.

It is an arithmetic number, because the mean of its divisors is an integer number (110055101100061).

Almost surely, 2^{220110202200121} is an apocalyptic number.

It is an amenable number.

220110202200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220110202200121 is an equidigital number, since it uses as much as digits as its factorization.

220110202200121 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 16.

Adding to 220110202200121 its reverse (121002202011022), we get a palindrome (341112404211143).

The spelling of 220110202200121 in words is "two hundred twenty trillion, one hundred ten billion, two hundred two million, two hundred thousand, one hundred twenty-one".