20012204252 has 12 divisors (see below), whose sum is σ = 36864586920. Its totient is φ = 9479465136.

The previous prime is 20012204249. The next prime is 20012204269. The reversal of 20012204252 is 25240221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131659163 + ... + 131659314.

It is an arithmetic number, because the mean of its divisors is an integer number (3072048910).

Almost surely, 2^20012204252 is an apocalyptic number.

It is an amenable number.

20012204252 is a deficient number, since it is larger than the sum of its proper divisors (16852382668).

20012204252 is a wasteful number, since it uses less digits than its factorization.

20012204252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263318500 (or 263318498 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 20012204252 its reverse (25240221002), we get a palindrome (45252425254).

The spelling of 20012204252 in words is "twenty billion, twelve million, two hundred four thousand, two hundred fifty-two".