12211002224020 has 96 divisors (see below), whose sum is σ = 27298905379200. Its totient is φ = 4574852941824.

The previous prime is 12211002223999. The next prime is 12211002224107. The reversal of 12211002224020 is 2042220011221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623732472 + ... + 623752048.

It is an arithmetic number, because the mean of its divisors is an integer number (284363597700).

Almost surely, 2^{12211002224020} is an apocalyptic number.

12211002224020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211002224020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13649452689600).

12211002224020 is an abundant number, since it is smaller than the sum of its proper divisors (15087903155180).

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

12211002224020 is a wasteful number, since it uses less digits than its factorization.

12211002224020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38137 (or 38135 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12211002224020 its reverse (2042220011221), we get a palindrome (14253222235241).

The spelling of 12211002224020 in words is "twelve trillion, two hundred eleven billion, two million, two hundred twenty-four thousand, twenty".