121002002202111 has 4 divisors (see below), whose sum is σ = 161336002936152. Its totient is φ = 80668001468072.

The previous prime is 121002002202083. The next prime is 121002002202181. The reversal of 121002002202111 is 111202200200121.

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

It is a cyclic number.

It is not a de Polignac number, because 121002002202111 - 2⁶ = 121002002202047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002002202181) 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, 20167000367016 + ... + 20167000367021.

It is an arithmetic number, because the mean of its divisors is an integer number (40334000734038).

Almost surely, 2^{121002002202111} is an apocalyptic number.

121002002202111 is a deficient number, since it is larger than the sum of its proper divisors (40334000734041).

121002002202111 is an equidigital number, since it uses as much as digits as its factorization.

121002002202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40334000734040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121002002202111 its reverse (111202200200121), we get a palindrome (232204202402232).

The spelling of 121002002202111 in words is "one hundred twenty-one trillion, two billion, two million, two hundred two thousand, one hundred eleven".