22302143012440 has 16 divisors (see below), whose sum is σ = 50179821778080. Its totient is φ = 8920857204960.

The previous prime is 22302143012411. The next prime is 22302143012441. The reversal of 22302143012440 is 4421034120322.

It is a junction number, because it is equal to n+sod(n) for n = 22302143012399 and 22302143012408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22302143012441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278776787616 + ... + 278776787695.

It is an arithmetic number, because the mean of its divisors is an integer number (3136238861130).

Almost surely, 2^{22302143012440} is an apocalyptic number.

22302143012440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22302143012440 is an abundant number, since it is smaller than the sum of its proper divisors (27877678765640).

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

22302143012440 is a wasteful number, since it uses less digits than its factorization.

22302143012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557553575322 (or 557553575318 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22302143012440 its reverse (4421034120322), we get a palindrome (26723177132762).

The spelling of 22302143012440 in words is "twenty-two trillion, three hundred two billion, one hundred forty-three million, twelve thousand, four hundred forty".