121010212011111 has 8 divisors (see below), whose sum is σ = 161363863837440. Its totient is φ = 80665017429432.

The previous prime is 121010212011097. The next prime is 121010212011149. The reversal of 121010212011111 is 111110212010121.

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

It is not a de Polignac number, because 121010212011111 - 2⁵ = 121010212011079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010212011181) 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, 2114277775 + ... + 2114335008.

It is an arithmetic number, because the mean of its divisors is an integer number (20170482979680).

Almost surely, 2^{121010212011111} is an apocalyptic number.

121010212011111 is a deficient number, since it is larger than the sum of its proper divisors (40353651826329).

121010212011111 is an equidigital number, since it uses as much as digits as its factorization.

121010212011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228622325.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121010212011111 its reverse (111110212010121), we get a palindrome (232120424021232).

The spelling of 121010212011111 in words is "one hundred twenty-one trillion, ten billion, two hundred twelve million, eleven thousand, one hundred eleven".