12011222220000 has 120 divisors (see below), whose sum is σ = 39399211322856. Its totient is φ = 3202992576000.

The previous prime is 12011222219999. The next prime is 12011222220001. The reversal of 12011222220000 is 2222211021.

It is an interprime number because it is at equal distance from previous prime (12011222219999) and next prime (12011222220001).

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011222220001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100033519 + ... + 100153518.

Almost surely, 2^{12011222220000} is an apocalyptic number.

12011222220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011222220000 is an abundant number, since it is smaller than the sum of its proper divisors (27387989102856).

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

12011222220000 is an equidigital number, since it uses as much as digits as its factorization.

12011222220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200187070 (or 200187047 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12011222220000 its reverse (2222211021), we get a palindrome (12013444431021).

The spelling of 12011222220000 in words is "twelve trillion, eleven billion, two hundred twenty-two million, two hundred twenty thousand".