121010122111 has 8 divisors (see below), whose sum is σ = 126427534560. Its totient is φ = 115605718272.

The previous prime is 121010122061. The next prime is 121010122127. The reversal of 121010122111 is 111221010121.

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 121010122111 - 2¹³ = 121010113919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010122091 and 121010122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010122171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3233130 + ... + 3270343.

It is an arithmetic number, because the mean of its divisors is an integer number (15803441820).

Almost surely, 2^121010122111 is an apocalyptic number.

121010122111 is a deficient number, since it is larger than the sum of its proper divisors (5417412449).

121010122111 is an equidigital number, since it uses as much as digits as its factorization.

121010122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6504305.

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

Adding to 121010122111 its reverse (111221010121), we get a palindrome (232231132232).

The spelling of 121010122111 in words is "one hundred twenty-one billion, ten million, one hundred twenty-two thousand, one hundred eleven".