4121220225 has 12 divisors (see below), whose sum is σ = 6813750896. Its totient is φ = 2197984080.

The previous prime is 4121220211. The next prime is 4121220263. The reversal of 4121220225 is 5220221214.

It is not a de Polignac number, because 4121220225 - 2⁵ = 4121220193 is a prime.

It is a super-2 number, since 2×4121220225² = 33968912285898101250, which contains 22 as substring.

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, 27474727 + ... + 27474876.

Almost surely, 2^4121220225 is an apocalyptic number.

It is an amenable number.

4121220225 is a deficient number, since it is larger than the sum of its proper divisors (2692530671).

4121220225 is a wasteful number, since it uses less digits than its factorization.

4121220225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54949616 (or 54949611 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4121220225 is about 64196.7306410537. The cubic root of 4121220225 is about 1603.2771664931.

Adding to 4121220225 its reverse (5220221214), we get a palindrome (9341441439).

The spelling of 4121220225 in words is "four billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-five".