20204412225 has 48 divisors (see below), whose sum is σ = 34128654912. Its totient is φ = 10543253760.

The previous prime is 20204412209. The next prime is 20204412227. The reversal of 20204412225 is 52221440202.

It is not a de Polignac number, because 20204412225 - 2⁴ = 20204412209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20204412195 and 20204412204.

It is not an unprimeable number, because it can be changed into a prime (20204412227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1475862 + ... + 1489488.

It is an arithmetic number, because the mean of its divisors is an integer number (711013644).

Almost surely, 2^20204412225 is an apocalyptic number.

20204412225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20204412225 is a deficient number, since it is larger than the sum of its proper divisors (13924242687).

20204412225 is a wasteful number, since it uses less digits than its factorization.

20204412225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14066 (or 14061 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 20204412225 its reverse (52221440202), we get a palindrome (72425852427).

The spelling of 20204412225 in words is "twenty billion, two hundred four million, four hundred twelve thousand, two hundred twenty-five".