20424204202 has 8 divisors (see below), whose sum is σ = 31383533412. Its totient is φ = 9963026400.

The previous prime is 20424204197. The next prime is 20424204221. The reversal of 20424204202 is 20240242402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19563896641 + 860307561 = 139871^2 + 29331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124537749 + ... + 124537912.

Almost surely, 2^20424204202 is an apocalyptic number.

20424204202 is a deficient number, since it is larger than the sum of its proper divisors (10959329210).

20424204202 is a wasteful number, since it uses less digits than its factorization.

20424204202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249075704.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20424204202 its reverse (20240242402), we get a palindrome (40664446604).

The spelling of 20424204202 in words is "twenty billion, four hundred twenty-four million, two hundred four thousand, two hundred two".