12111011022210 has 64 divisors (see below), whose sum is σ = 30383851438080. Its totient is φ = 3085859874240.

The previous prime is 12111011022157. The next prime is 12111011022211. The reversal of 12111011022210 is 1222011011121.

It is a happy number.

It is a super-2 number, since 2×12111011022210² (a number of 27 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12111011022210.

It is not an unprimeable number, because it can be changed into a prime (12111011022211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82348002 + ... + 82494941.

It is an arithmetic number, because the mean of its divisors is an integer number (474747678720).

Almost surely, 2^{12111011022210} is an apocalyptic number.

12111011022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111011022210 is an abundant number, since it is smaller than the sum of its proper divisors (18272840415870).

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

12111011022210 is a wasteful number, since it uses less digits than its factorization.

12111011022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164843063.

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

Adding to 12111011022210 its reverse (1222011011121), we get a palindrome (13333022033331).

The spelling of 12111011022210 in words is "twelve trillion, one hundred eleven billion, eleven million, twenty-two thousand, two hundred ten".