12220111002 has 128 divisors (see below), whose sum is σ = 29113344000. Its totient is φ = 3380410880.

The previous prime is 12220110997. The next prime is 12220111019. The reversal of 12220111002 is 20011102221.

It is a super-2 number, since 2×12220111002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3916399 + ... + 3919517.

It is an arithmetic number, because the mean of its divisors is an integer number (227448000).

Almost surely, 2^12220111002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220111002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14556672000).

12220111002 is an abundant number, since it is smaller than the sum of its proper divisors (16893232998).

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

12220111002 is a wasteful number, since it uses less digits than its factorization.

12220111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12220111002 its reverse (20011102221), we get a palindrome (32231213223).

The spelling of 12220111002 in words is "twelve billion, two hundred twenty million, one hundred eleven thousand, two".