22212404410225 has 12 divisors (see below), whose sum is σ = 28215171261900. Its totient is φ = 17336510758400.

The previous prime is 22212404410223. The next prime is 22212404410253. The reversal of 22212404410225 is 52201440421222.

It can be written as a sum of positive squares in 6 ways, for example, as 8430498075024 + 13781906335201 = 2903532^2 + 3712399^2 .

It is not a de Polignac number, because 22212404410225 - 2¹ = 22212404410223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22212404410223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10835318200 + ... + 10835320249.

It is an arithmetic number, because the mean of its divisors is an integer number (2351264271825).

Almost surely, 2^{22212404410225} is an apocalyptic number.

22212404410225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22212404410225 is a deficient number, since it is larger than the sum of its proper divisors (6002766851675).

22212404410225 is a wasteful number, since it uses less digits than its factorization.

22212404410225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670638500 (or 21670638495 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 22212404410225 its reverse (52201440421222), we get a palindrome (74413844831447).

The spelling of 22212404410225 in words is "twenty-two trillion, two hundred twelve billion, four hundred four million, four hundred ten thousand, two hundred twenty-five".