22211025441660 has 288 divisors, whose sum is σ = 74044353277440. Its totient is φ = 5344505510400.

The previous prime is 22211025441601. The next prime is 22211025441691. The reversal of 22211025441660 is 6614452011222.

22211025441660 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 102 + 544 + 1 + 6 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1811216689 + ... + 1811228951.

It is an arithmetic number, because the mean of its divisors is an integer number (257098448880).

Almost surely, 2^{22211025441660} is an apocalyptic number.

22211025441660 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 22211025441660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37022176638720).

22211025441660 is an abundant number, since it is smaller than the sum of its proper divisors (51833327835780).

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

22211025441660 is a wasteful number, since it uses less digits than its factorization.

22211025441660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19009 (or 19004 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 22211025441660 its reverse (6614452011222), we get a palindrome (28825477452882).

The spelling of 22211025441660 in words is "twenty-two trillion, two hundred eleven billion, twenty-five million, four hundred forty-one thousand, six hundred sixty".