22234121440 has 96 divisors (see below), whose sum is σ = 53405956800. Its totient is φ = 8745676800.

The previous prime is 22234121417. The next prime is 22234121473. The reversal of 22234121440 is 4412143222.

It is a congruent number.

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, 4780236 + ... + 4784884.

It is an arithmetic number, because the mean of its divisors is an integer number (556312050).

Almost surely, 2^22234121440 is an apocalyptic number.

22234121440 is a gapful number since it is divisible by the number (20) 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 22234121440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26702978400).

22234121440 is an abundant number, since it is smaller than the sum of its proper divisors (31171835360).

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

22234121440 is a wasteful number, since it uses less digits than its factorization.

22234121440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156 (or 5148 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22234121440 its reverse (4412143222), we get a palindrome (26646264662).

The spelling of 22234121440 in words is "twenty-two billion, two hundred thirty-four million, one hundred twenty-one thousand, four hundred forty".