12011221121110 has 32 divisors (see below), whose sum is σ = 23313178879200. Its totient is φ = 4440605495040.

The previous prime is 12011221121047. The next prime is 12011221121173. The reversal of 12011221121110 is 1112112211021.

It is an interprime number because it is at equal distance from previous prime (12011221121047) and next prime (12011221121173).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770930665 + ... + 770946244.

It is an arithmetic number, because the mean of its divisors is an integer number (728536839975).

Almost surely, 2^{12011221121110} is an apocalyptic number.

12011221121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011221121110 is a deficient number, since it is larger than the sum of its proper divisors (11301957758090).

12011221121110 is a wasteful number, since it uses less digits than its factorization.

12011221121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541876976.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12011221121110 its reverse (1112112211021), we get a palindrome (13123333332131).

It can be divided in two parts, 1201122 and 1121110, that added together give a palindrome (2322232).

The spelling of 12011221121110 in words is "twelve trillion, eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred ten".