121020202011 has 8 divisors (see below), whose sum is σ = 161377670160. Its totient is φ = 80671434272.

The previous prime is 121020201997. The next prime is 121020202019. The reversal of 121020202011 is 110202020121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121020202011 - 2⁹ = 121020201499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121020202019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142576 + ... + 2198333.

It is an arithmetic number, because the mean of its divisors is an integer number (20172208770).

Almost surely, 2^121020202011 is an apocalyptic number.

121020202011 is a deficient number, since it is larger than the sum of its proper divisors (40357468149).

121020202011 is an equidigital number, since it uses as much as digits as its factorization.

121020202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350205.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121020202011 its reverse (110202020121), we get a palindrome (231222222132).

It can be divided in two parts, 1 and 21020202011, that added together give a palindrome (21020202012).

The spelling of 121020202011 in words is "one hundred twenty-one billion, twenty million, two hundred two thousand, eleven".