121101110101 has 2 divisors, whose sum is σ = 121101110102. Its totient is φ = 121101110100.

The previous prime is 121101110047. The next prime is 121101110129. The reversal of 121101110101 is 101011101121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115419870225 + 5681239876 = 339735^2 + 75374^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101110101 - 2¹³ = 121101101909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121101110201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550555050 + 60550555051.

It is an arithmetic number, because the mean of its divisors is an integer number (60550555051).

Almost surely, 2^121101110101 is an apocalyptic number.

It is an amenable number.

121101110101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101110101 is an equidigital number, since it uses as much as digits as its factorization.

121101110101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 121101110101 its reverse (101011101121), we get a palindrome (222112211222).

It can be divided in two parts, 12110 and 1110101, that added together give a palindrome (1122211).

The spelling of 121101110101 in words is "one hundred twenty-one billion, one hundred one million, one hundred ten thousand, one hundred one".