20120006225 has 24 divisors (see below), whose sum is σ = 27231694560. Its totient is φ = 14624768000.

The previous prime is 20120006173. The next prime is 20120006237. The reversal of 20120006225 is 52260002102.

It is not a de Polignac number, because 20120006225 - 2⁶ = 20120006161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20120006197 and 20120006206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 512081 + ... + 549969.

It is an arithmetic number, because the mean of its divisors is an integer number (1134653940).

Almost surely, 2^20120006225 is an apocalyptic number.

20120006225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20120006225 is a deficient number, since it is larger than the sum of its proper divisors (7111688335).

20120006225 is a wasteful number, since it uses less digits than its factorization.

20120006225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39841 (or 39836 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20120006225 its reverse (52260002102), we get a palindrome (72380008327).

The spelling of 20120006225 in words is "twenty billion, one hundred twenty million, six thousand, two hundred twenty-five".