121110122122211 has 8 divisors (see below), whose sum is σ = 121386495399840. Its totient is φ = 120833751100032.

The previous prime is 121110122122177. The next prime is 121110122122217. The reversal of 121110122122211 is 112221221011121.

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 121110122122211 - 2⁴² = 116712075611107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110122122217) 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, 157284101 + ... + 158052233.

It is an arithmetic number, because the mean of its divisors is an integer number (15173311924980).

Almost surely, 2^{121110122122211} is an apocalyptic number.

121110122122211 is a deficient number, since it is larger than the sum of its proper divisors (276373277629).

121110122122211 is an equidigital number, since it uses as much as digits as its factorization.

121110122122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127725.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121110122122211 its reverse (112221221011121), we get a palindrome (233331343133332).

The spelling of 121110122122211 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred eleven".