12020121110 has 8 divisors (see below), whose sum is σ = 21636218016. Its totient is φ = 4808048440.

The previous prime is 12020121097. The next prime is 12020121161. The reversal of 12020121110 is 1112102021.

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

It is a super-2 number, since 2×12020121110² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12020121091 and 12020121100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601006046 + ... + 601006065.

It is an arithmetic number, because the mean of its divisors is an integer number (2704527252).

Almost surely, 2^12020121110 is an apocalyptic number.

12020121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020121110 is a deficient number, since it is larger than the sum of its proper divisors (9616096906).

12020121110 is a wasteful number, since it uses less digits than its factorization.

12020121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202012118.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12020121110 its reverse (1112102021), we get a palindrome (13132223131).

The spelling of 12020121110 in words is "twelve billion, twenty million, one hundred twenty-one thousand, one hundred ten".