24220021420 has 24 divisors (see below), whose sum is σ = 58128051744. Its totient is φ = 8304007296.

The previous prime is 24220021339. The next prime is 24220021429. The reversal of 24220021420 is 2412002242.

It is not an unprimeable number, because it can be changed into a prime (24220021429) 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, 86499937 + ... + 86500216.

It is an arithmetic number, because the mean of its divisors is an integer number (2422002156).

Almost surely, 2^24220021420 is an apocalyptic number.

24220021420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24220021420 is an abundant number, since it is smaller than the sum of its proper divisors (33908030324).

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

24220021420 is a wasteful number, since it uses less digits than its factorization.

24220021420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173000169 (or 173000167 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 24220021420 its reverse (2412002242), we get a palindrome (26632023662).

The spelling of 24220021420 in words is "twenty-four billion, two hundred twenty million, twenty-one thousand, four hundred twenty".