12213401422240 has 96 divisors (see below), whose sum is σ = 29790947128320. Its totient is φ = 4726814822400.

The previous prime is 12213401422223. The next prime is 12213401422273. The reversal of 12213401422240 is 4222410431221.

It is a junction number, because it is equal to n+sod(n) for n = 12213401422199 and 12213401422208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24598845 + ... + 25090435.

It is an arithmetic number, because the mean of its divisors is an integer number (310322365920).

Almost surely, 2^{12213401422240} is an apocalyptic number.

12213401422240 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 12213401422240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14895473564160).

12213401422240 is an abundant number, since it is smaller than the sum of its proper divisors (17577545706080).

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

12213401422240 is a wasteful number, since it uses less digits than its factorization.

12213401422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496646 (or 496638 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 12213401422240 its reverse (4222410431221), we get a palindrome (16435811853461).

The spelling of 12213401422240 in words is "twelve trillion, two hundred thirteen billion, four hundred one million, four hundred twenty-two thousand, two hundred forty".