22121403440300 has 72 divisors (see below), whose sum is σ = 50877061003440. Its totient is φ = 8319884339200.

The previous prime is 22121403440251. The next prime is 22121403440341. The reversal of 22121403440300 is 304430412122.

It is a self number, because there is not a number n which added to its sum of digits gives 22121403440300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4652681 + ... + 8117280.

It is an arithmetic number, because the mean of its divisors is an integer number (706625847270).

Almost surely, 2^{22121403440300} is an apocalyptic number.

22121403440300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121403440300 is an abundant number, since it is smaller than the sum of its proper divisors (28755657563140).

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

22121403440300 is a wasteful number, since it uses less digits than its factorization.

22121403440300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12771011 (or 12771004 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22121403440300 its reverse (304430412122), we get a palindrome (22425833852422).

The spelling of 22121403440300 in words is "twenty-two trillion, one hundred twenty-one billion, four hundred three million, four hundred forty thousand, three hundred".