121102002021101 has 4 divisors (see below), whose sum is σ = 121491397526304. Its totient is φ = 120712606515900.

The previous prime is 121102002021067. The next prime is 121102002021107. The reversal of 121102002021101 is 101120200201121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121102002021101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102002021107) 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, 194697752135 + ... + 194697752756.

It is an arithmetic number, because the mean of its divisors is an integer number (30372849381576).

Almost surely, 2^{121102002021101} is an apocalyptic number.

It is an amenable number.

121102002021101 is a deficient number, since it is larger than the sum of its proper divisors (389395505203).

121102002021101 is an equidigital number, since it uses as much as digits as its factorization.

121102002021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389395505202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121102002021101 its reverse (101120200201121), we get a palindrome (222222202222222).

The spelling of 121102002021101 in words is "one hundred twenty-one trillion, one hundred two billion, two million, twenty-one thousand, one hundred one".