4241221425 has 96 divisors (see below), whose sum is σ = 9121916160. Its totient is φ = 1891468800.

The previous prime is 4241221417. The next prime is 4241221427. The reversal of 4241221425 is 5241221424.

It is a happy number.

4241221425 is a `hidden beast` number, since 424 + 1 + 2 + 214 + 25 = 666.

It is not a de Polignac number, because 4241221425 - 2³ = 4241221417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4241221427) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 182779 + ... + 204671.

It is an arithmetic number, because the mean of its divisors is an integer number (95019960).

Almost surely, 2^4241221425 is an apocalyptic number.

4241221425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4241221425 is an abundant number, since it is smaller than the sum of its proper divisors (4880694735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4241221425 is a wasteful number, since it uses less digits than its factorization.

4241221425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21960 (or 21949 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 4241221425 is about 65124.6606517070. The cubic root of 4241221425 is about 1618.6898701098.

Adding to 4241221425 its reverse (5241221424), we get a palindrome (9482442849).

Subtracting 4241221425 from its reverse (5241221424), we obtain a palindrome (999999999).

The spelling of 4241221425 in words is "four billion, two hundred forty-one million, two hundred twenty-one thousand, four hundred twenty-five".