22442231513240 has 384 divisors, whose sum is σ = 66482246983680. Its totient is φ = 6734935065600.

The previous prime is 22442231513203. The next prime is 22442231513287. The reversal of 22442231513240 is 4231513224422.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 22442231513240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 131581697 + ... + 131752143.

It is an arithmetic number, because the mean of its divisors is an integer number (173130851520).

Almost surely, 2^{22442231513240} is an apocalyptic number.

22442231513240 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 22442231513240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33241123491840).

22442231513240 is an abundant number, since it is smaller than the sum of its proper divisors (44040015470440).

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

22442231513240 is a wasteful number, since it uses less digits than its factorization.

22442231513240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170711 (or 170700 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 22442231513240 its reverse (4231513224422), we get a palindrome (26673744737662).

The spelling of 22442231513240 in words is "twenty-two trillion, four hundred forty-two billion, two hundred thirty-one million, five hundred thirteen thousand, two hundred forty".