121100202010111 has 8 divisors (see below), whose sum is σ = 124210824242384. Its totient is φ = 118002958799040.

The previous prime is 121100202010097. The next prime is 121100202010171. The reversal of 121100202010111 is 111010202001121.

It is a happy number.

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 121100202010111 - 2¹⁵ = 121100201977343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121100202010091 and 121100202010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100202010171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3344736966 + ... + 3344773171.

It is an arithmetic number, because the mean of its divisors is an integer number (15526353030298).

Almost surely, 2^{121100202010111} is an apocalyptic number.

121100202010111 is a deficient number, since it is larger than the sum of its proper divisors (3110622232273).

121100202010111 is an equidigital number, since it uses as much as digits as its factorization.

121100202010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6689510601.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121100202010111 its reverse (111010202001121), we get a palindrome (232110404011232).

The spelling of 121100202010111 in words is "one hundred twenty-one trillion, one hundred billion, two hundred two million, ten thousand, one hundred eleven".