121102002101 has 2 divisors, whose sum is σ = 121102002102. Its totient is φ = 121102002100.

The previous prime is 121102002083. The next prime is 121102002149. The reversal of 121102002101 is 101200201121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97200532900 + 23901469201 = 311770^2 + 154601^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102002101 - 2⁶ = 121102002037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121102002181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551001050 + 60551001051.

It is an arithmetic number, because the mean of its divisors is an integer number (60551001051).

Almost surely, 2^121102002101 is an apocalyptic number.

It is an amenable number.

121102002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102002101 is an equidigital number, since it uses as much as digits as its factorization.

121102002101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121102002101 its reverse (101200201121), we get a palindrome (222302203222).

The spelling of 121102002101 in words is "one hundred twenty-one billion, one hundred two million, two thousand, one hundred one".