20202222025 has 6 divisors (see below), whose sum is σ = 25050755342. Its totient is φ = 16161777600.

The previous prime is 20202222023. The next prime is 20202222059. The reversal of 20202222025 is 52022220202.

It can be written as a sum of positive squares in 3 ways, for example, as 5756105161 + 14446116864 = 75869^2 + 120192^2 .

It is not a de Polignac number, because 20202222025 - 2¹ = 20202222023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202221993 and 20202222011.

It is not an unprimeable number, because it can be changed into a prime (20202222023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404044416 + ... + 404044465.

Almost surely, 2^20202222025 is an apocalyptic number.

20202222025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20202222025 is a deficient number, since it is larger than the sum of its proper divisors (4848533317).

20202222025 is an equidigital number, since it uses as much as digits as its factorization.

20202222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808088891 (or 808088886 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 20202222025 its reverse (52022220202), we get a palindrome (72224442227).

The spelling of 20202222025 in words is "twenty billion, two hundred two million, two hundred twenty-two thousand, twenty-five".