22554211240 has 192 divisors, whose sum is σ = 58467225600. Its totient is φ = 7824460160.

The previous prime is 22554211213. The next prime is 22554211261. The reversal of 22554211240 is 4211245522.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22554211199 and 22554211208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58888089 + ... + 58888471.

It is an arithmetic number, because the mean of its divisors is an integer number (304516800).

Almost surely, 2^22554211240 is an apocalyptic number.

22554211240 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 22554211240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29233612800).

22554211240 is an abundant number, since it is smaller than the sum of its proper divisors (35913014360).

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

22554211240 is a wasteful number, since it uses less digits than its factorization.

22554211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 22554211240 its reverse (4211245522), we get a palindrome (26765456762).

The spelling of 22554211240 in words is "twenty-two billion, five hundred fifty-four million, two hundred eleven thousand, two hundred forty".