12011022211110 has 96 divisors (see below), whose sum is σ = 31159779749280. Its totient is φ = 2945561465856.

The previous prime is 12011022211057. The next prime is 12011022211129. The reversal of 12011022211110 is 1111222011021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12011022211110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28007986 + ... + 28433594.

It is an arithmetic number, because the mean of its divisors is an integer number (324581039055).

Almost surely, 2^{12011022211110} is an apocalyptic number.

12011022211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011022211110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15579889874640).

12011022211110 is an abundant number, since it is smaller than the sum of its proper divisors (19148757538170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011022211110 is a wasteful number, since it uses less digits than its factorization.

12011022211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426170 (or 425901 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011022211110 its reverse (1111222011021), we get a palindrome (13122244222131).

The spelling of 12011022211110 in words is "twelve trillion, eleven billion, twenty-two million, two hundred eleven thousand, one hundred ten".