22144010332440 has 32 divisors (see below), whose sum is σ = 66432030997680. Its totient is φ = 5905069421952.

The previous prime is 22144010332439. The next prime is 22144010332463. The reversal of 22144010332440 is 4423301044122.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22144010332398 and 22144010332407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92266709599 + ... + 92266709838.

Almost surely, 2^{22144010332440} is an apocalyptic number.

22144010332440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22144010332440 is an abundant number, since it is smaller than the sum of its proper divisors (44288020665240).

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

22144010332440 is a wasteful number, since it uses less digits than its factorization.

22144010332440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184533419451 (or 184533419447 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 22144010332440 its reverse (4423301044122), we get a palindrome (26567311376562).

The spelling of 22144010332440 in words is "twenty-two trillion, one hundred forty-four billion, ten million, three hundred thirty-two thousand, four hundred forty".