23221011304400 has 120 divisors (see below), whose sum is σ = 68662744303104. Its totient is φ = 7349067302400.

The previous prime is 23221011304399. The next prime is 23221011304417. The reversal of 23221011304400 is 440311012232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318933536 + ... + 319006335.

Almost surely, 2^{23221011304400} is an apocalyptic number.

23221011304400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23221011304400 is an abundant number, since it is smaller than the sum of its proper divisors (45441732998704).

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

23221011304400 is a wasteful number, since it uses less digits than its factorization.

23221011304400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637939909 (or 637939898 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23221011304400 its reverse (440311012232), we get a palindrome (23661322316632).

The spelling of 23221011304400 in words is "twenty-three trillion, two hundred twenty-one billion, eleven million, three hundred four thousand, four hundred".