22240002220400 has 60 divisors (see below), whose sum is σ = 53433060720000. Its totient is φ = 8895758576640.

The previous prime is 22240002220339. The next prime is 22240002220411. The reversal of 22240002220400 is 402220004222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14321201 + ... + 15797999.

It is an arithmetic number, because the mean of its divisors is an integer number (890551012000).

Almost surely, 2^{22240002220400} is an apocalyptic number.

22240002220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22240002220400 is an abundant number, since it is smaller than the sum of its proper divisors (31193058499600).

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

22240002220400 is a wasteful number, since it uses less digits than its factorization.

22240002220400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514466 (or 1514455 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22240002220400 its reverse (402220004222), we get a palindrome (22642222224622).

The spelling of 22240002220400 in words is "twenty-two trillion, two hundred forty billion, two million, two hundred twenty thousand, four hundred".