121101312211001 has 4 divisors (see below), whose sum is σ = 121239398086692. Its totient is φ = 120963226335312.

The previous prime is 121101312210979. The next prime is 121101312211027. The reversal of 121101312211001 is 100112213101121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86710066206976 + 34391246004025 = 9311824^2 + 5864405^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101312211001 - 2⁶ = 121101312210937 is a prime.

It is a super-2 number, since 2×121101312211001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101312211501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69042936530 + ... + 69042938283.

It is an arithmetic number, because the mean of its divisors is an integer number (30309849521673).

Almost surely, 2^{121101312211001} is an apocalyptic number.

It is an amenable number.

121101312211001 is a deficient number, since it is larger than the sum of its proper divisors (138085875691).

121101312211001 is an equidigital number, since it uses as much as digits as its factorization.

121101312211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138085875690.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 121101312211001 its reverse (100112213101121), we get a palindrome (221213525312122).

The spelling of 121101312211001 in words is "one hundred twenty-one trillion, one hundred one billion, three hundred twelve million, two hundred eleven thousand, one".