21424152223000 has 32 divisors (see below), whose sum is σ = 50132516204160. Its totient is φ = 8569660888800.

The previous prime is 21424152222983. The next prime is 21424152223007. The reversal of 21424152223000 is 32225142412.

It is a self number, because there is not a number n which added to its sum of digits gives 21424152223000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21424152223007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10712075112 + ... + 10712077111.

It is an arithmetic number, because the mean of its divisors is an integer number (1566641131380).

Almost surely, 2^{21424152223000} is an apocalyptic number.

21424152223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21424152223000 is an abundant number, since it is smaller than the sum of its proper divisors (28708363981160).

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

21424152223000 is a wasteful number, since it uses less digits than its factorization.

21424152223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21424152244 (or 21424152230 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 21424152223000 its reverse (32225142412), we get a palindrome (21456377365412).

The spelling of 21424152223000 in words is "twenty-one trillion, four hundred twenty-four billion, one hundred fifty-two million, two hundred twenty-three thousand".