402225110225 has 12 divisors (see below), whose sum is σ = 512239114524. Its totient is φ = 313083328320.

The previous prime is 402225110197. The next prime is 402225110239. The reversal of 402225110225 is 522011522204.

It can be written as a sum of positive squares in 6 ways, for example, as 19984628689 + 382240481536 = 141367^2 + 618256^2 .

It is not a de Polignac number, because 402225110225 - 2¹⁴ = 402225093841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402225110194 and 402225110203.

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, 217418054 + ... + 217419903.

It is an arithmetic number, because the mean of its divisors is an integer number (42686592877).

Almost surely, 2^402225110225 is an apocalyptic number.

It is an amenable number.

402225110225 is a deficient number, since it is larger than the sum of its proper divisors (110014004299).

402225110225 is a wasteful number, since it uses less digits than its factorization.

402225110225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434838004 (or 434837999 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 402225110225 its reverse (522011522204), we get a palindrome (924236632429).

The spelling of 402225110225 in words is "four hundred two billion, two hundred twenty-five million, one hundred ten thousand, two hundred twenty-five".