121002102111101 has 2 divisors, whose sum is σ = 121002102111102. Its totient is φ = 121002102111100.

The previous prime is 121002102111091. The next prime is 121002102111131. The reversal of 121002102111101 is 101111201200121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98059209175225 + 22942892935876 = 9902485^2 + 4789874^2 .

It is a cyclic number.

It is not a de Polignac number, because 121002102111101 - 2²⁶ = 121002035002237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121002102111131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501051055550 + 60501051055551.

It is an arithmetic number, because the mean of its divisors is an integer number (60501051055551).

Almost surely, 2^{121002102111101} is an apocalyptic number.

It is an amenable number.

121002102111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002102111101 is an equidigital number, since it uses as much as digits as its factorization.

121002102111101 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 14.

Adding to 121002102111101 its reverse (101111201200121), we get a palindrome (222113303311222).

The spelling of 121002102111101 in words is "one hundred twenty-one trillion, two billion, one hundred two million, one hundred eleven thousand, one hundred one".