121110121211 has 8 divisors (see below), whose sum is σ = 123857457600. Its totient is φ = 118393142400.

The previous prime is 121110121199. The next prime is 121110121213. The reversal of 121110121211 is 112121011121.

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 121110121211 - 2⁶ = 121110121147 is a prime.

It is a super-2 number, since 2×121110121211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110121213) 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, 7581326 + ... + 7597283.

It is an arithmetic number, because the mean of its divisors is an integer number (15482182200).

Almost surely, 2^121110121211 is an apocalyptic number.

121110121211 is a deficient number, since it is larger than the sum of its proper divisors (2747336389).

121110121211 is a wasteful number, since it uses less digits than its factorization.

121110121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15178789.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121110121211 its reverse (112121011121), we get a palindrome (233231132332).

The spelling of 121110121211 in words is "one hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, two hundred eleven".