22420433225 has 12 divisors (see below), whose sum is σ = 27803803404. Its totient is φ = 17934755520.

The previous prime is 22420433209. The next prime is 22420433251. The reversal of 22420433225 is 52233402422.

It can be written as a sum of positive squares in 6 ways, for example, as 2848143424 + 19572289801 = 53368^2 + 139901^2 .

It is not a de Polignac number, because 22420433225 - 2⁴ = 22420433209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306947 + ... + 372903.

It is an arithmetic number, because the mean of its divisors is an integer number (2316983617).

Almost surely, 2^22420433225 is an apocalyptic number.

22420433225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22420433225 is a deficient number, since it is larger than the sum of its proper divisors (5383370179).

22420433225 is a wasteful number, since it uses less digits than its factorization.

22420433225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79564 (or 79559 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 22420433225 its reverse (52233402422), we get a palindrome (74653835647).

The spelling of 22420433225 in words is "twenty-two billion, four hundred twenty million, four hundred thirty-three thousand, two hundred twenty-five".