121120021122101 has 4 divisors (see below), whose sum is σ = 121176911693100. Its totient is φ = 121063130551104.

The previous prime is 121120021122077. The next prime is 121120021122109. The reversal of 121120021122101 is 101221120021121.

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 36475439460100 + 84644581662001 = 6039490^2 + 9200249^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120021122101 - 2²⁶ = 121119954013237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121120021122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120021122109) 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, 28445282306 + ... + 28445286563.

It is an arithmetic number, because the mean of its divisors is an integer number (30294227923275).

Almost surely, 2^{121120021122101} is an apocalyptic number.

It is an amenable number.

121120021122101 is a deficient number, since it is larger than the sum of its proper divisors (56890570999).

121120021122101 is an equidigital number, since it uses as much as digits as its factorization.

121120021122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56890570998.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121120021122101 its reverse (101221120021121), we get a palindrome (222341141143222).

The spelling of 121120021122101 in words is "one hundred twenty-one trillion, one hundred twenty billion, twenty-one million, one hundred twenty-two thousand, one hundred one".