20425124212 has 24 divisors (see below), whose sum is σ = 37035250560. Its totient is φ = 9844742880.

The previous prime is 20425124197. The next prime is 20425124257. The reversal of 20425124212 is 21242152402.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 66328 + ... + 212719.

It is an arithmetic number, because the mean of its divisors is an integer number (1543135440).

Almost surely, 2^20425124212 is an apocalyptic number.

It is an amenable number.

20425124212 is a deficient number, since it is larger than the sum of its proper divisors (16610126348).

20425124212 is a wasteful number, since it uses less digits than its factorization.

20425124212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279711 (or 279709 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20425124212 its reverse (21242152402), we get a palindrome (41667276614).

The spelling of 20425124212 in words is "twenty billion, four hundred twenty-five million, one hundred twenty-four thousand, two hundred twelve".