1022200225 has 18 divisors (see below), whose sum is σ = 1346484194. Its totient is φ = 769651200.

The previous prime is 1022200219. The next prime is 1022200279. The reversal of 1022200225 is 5220022201.

It can be written as a sum of positive squares in 9 ways, for example, as 20034576 + 1002165649 = 4476^2 + 31657^2 .

It is not a de Polignac number, because 1022200225 - 2¹⁵ = 1022167457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022200199 and 1022200208.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 63516 + ... + 77965.

Almost surely, 2^1022200225 is an apocalyptic number.

It is an amenable number.

1022200225 is a deficient number, since it is larger than the sum of its proper divisors (324283969).

1022200225 is a wasteful number, since it uses less digits than its factorization.

1022200225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141525 (or 141503 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1022200225 is about 31971.8661482248. The cubic root of 1022200225 is about 1007.3459794479.

Adding to 1022200225 its reverse (5220022201), we get a palindrome (6242222426).

The spelling of 1022200225 in words is "one billion, twenty-two million, two hundred thousand, two hundred twenty-five".