1101102220121 has 2 divisors, whose sum is σ = 1101102220122. Its totient is φ = 1101102220120.

The previous prime is 1101102220061. The next prime is 1101102220139. The reversal of 1101102220121 is 1210222011011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1077103562896 + 23998657225 = 1037836^2 + 154915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101102220121 - 2²² = 1101098025817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101102220096 and 1101102220105.

It is not a weakly prime, because it can be changed into another prime (1101102220921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550551110060 + 550551110061.

It is an arithmetic number, because the mean of its divisors is an integer number (550551110061).

Almost surely, 2^{1101102220121} is an apocalyptic number.

It is an amenable number.

1101102220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101102220121 is an equidigital number, since it uses as much as digits as its factorization.

1101102220121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1101102220121 its reverse (1210222011011), we get a palindrome (2311324231132).

The spelling of 1101102220121 in words is "one trillion, one hundred one billion, one hundred two million, two hundred twenty thousand, one hundred twenty-one".