22421201243004 has 96 divisors (see below), whose sum is σ = 61206223680000. Its totient is φ = 7078324226688.

The previous prime is 22421201242997. The next prime is 22421201243027. The reversal of 22421201243004 is 40034210212422.

It is a happy number.

22421201243004 is a `hidden beast` number, since 2 + 2 + 4 + 21 + 201 + 2 + 430 + 0 + 4 = 666.

It is a super-2 number, since 2×22421201243004² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 5493337 + ... + 8661359.

It is an arithmetic number, because the mean of its divisors is an integer number (637564830000).

Almost surely, 2^{22421201243004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22421201243004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30603111840000).

22421201243004 is an abundant number, since it is smaller than the sum of its proper divisors (38785022436996).

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

22421201243004 is a wasteful number, since it uses less digits than its factorization.

22421201243004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171504 (or 3171496 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 22421201243004 its reverse (40034210212422), we get a palindrome (62455411455426).

The spelling of 22421201243004 in words is "twenty-two trillion, four hundred twenty-one billion, two hundred one million, two hundred forty-three thousand, four".