202412124420 has 48 divisors (see below), whose sum is σ = 618277036608. Its totient is φ = 49069605760.

The previous prime is 202412124419. The next prime is 202412124443. The reversal of 202412124420 is 24421214202.

It is a happy number.

It is a super-2 number, since 2×202412124420² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153341859 + ... + 153343178.

It is an arithmetic number, because the mean of its divisors is an integer number (12880771596).

Almost surely, 2^202412124420 is an apocalyptic number.

202412124420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202412124420 is an abundant number, since it is smaller than the sum of its proper divisors (415864912188).

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

202412124420 is a wasteful number, since it uses less digits than its factorization.

202412124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306685060 (or 306685058 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 202412124420 its reverse (24421214202), we get a palindrome (226833338622).

The spelling of 202412124420 in words is "two hundred two billion, four hundred twelve million, one hundred twenty-four thousand, four hundred twenty".