11220025 has 6 divisors (see below), whose sum is σ = 13912862. Its totient is φ = 8976000.

The previous prime is 11220007. The next prime is 11220029. The reversal of 11220025 is 52002211.

11220025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 356409 + 10863616 = 597^2 + 3296^2 .

It is not a de Polignac number, because 11220025 - 2⁹ = 11219513 is a prime.

It is a super-2 number, since 2×11220025² = 251777922001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11219987 and 11220014.

It is not an unprimeable number, because it can be changed into a prime (11220029) 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, 224376 + ... + 224425.

Almost surely, 2^11220025 is an apocalyptic number.

It is an amenable number.

11220025 is a deficient number, since it is larger than the sum of its proper divisors (2692837).

11220025 is an equidigital number, since it uses as much as digits as its factorization.

11220025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448811 (or 448806 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 11220025 is about 3349.6305766457. The cubic root of 11220025 is about 223.8710527512.

Adding to 11220025 its reverse (52002211), we get a palindrome (63222236).

It can be divided in two parts, 112200 and 25, that added together give a square (112225 = 335²).

The spelling of 11220025 in words is "eleven million, two hundred twenty thousand, twenty-five".