12012021110 has 16 divisors (see below), whose sum is σ = 21724114032. Its totient is φ = 4782036000.

The previous prime is 12012021107. The next prime is 12012021113. The reversal of 12012021110 is 1112021021.

It is an interprime number because it is at equal distance from previous prime (12012021107) and next prime (12012021113).

It is a super-2 number, since 2×12012021110² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012021091 and 12012021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012021113) 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, 2844341 + ... + 2848560.

It is an arithmetic number, because the mean of its divisors is an integer number (1357757127).

Almost surely, 2^12012021110 is an apocalyptic number.

12012021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012021110 is a deficient number, since it is larger than the sum of its proper divisors (9712092922).

12012021110 is a wasteful number, since it uses less digits than its factorization.

12012021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693119.

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

Adding to 12012021110 its reverse (1112021021), we get a palindrome (13124042131).

The spelling of 12012021110 in words is "twelve billion, twelve million, twenty-one thousand, one hundred ten".