220240421424 has 60 divisors (see below), whose sum is σ = 620293260496. Its totient is φ = 72945864576.

The previous prime is 220240421417. The next prime is 220240421437. The reversal of 220240421424 is 424124042022.

220240421424 is a `hidden beast` number, since 2 + 20 + 2 + 404 + 214 + 24 = 666.

It is a super-2 number, since 2×220240421424² (a number of 23 digits) contains 22 as substring.

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, 4848244 + ... + 4893459.

Almost surely, 2^220240421424 is an apocalyptic number.

220240421424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220240421424 is an abundant number, since it is smaller than the sum of its proper divisors (400052839072).

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

220240421424 is a wasteful number, since it uses less digits than its factorization.

220240421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9741874 (or 9741865 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 220240421424 its reverse (424124042022), we get a palindrome (644364463446).

The spelling of 220240421424 in words is "two hundred twenty billion, two hundred forty million, four hundred twenty-one thousand, four hundred twenty-four".