2221441425 has 144 divisors (see below), whose sum is σ = 4853796480. Its totient is φ = 948049920.

The previous prime is 2221441367. The next prime is 2221441429. The reversal of 2221441425 is 5241441222.

It is a happy number.

2221441425 is a `hidden beast` number, since 2 + 221 + 4 + 414 + 25 = 666.

It is not a de Polignac number, because 2221441425 - 2⁹ = 2221440913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221441429) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4364071 + ... + 4364579.

It is an arithmetic number, because the mean of its divisors is an integer number (33706920).

Almost surely, 2^2221441425 is an apocalyptic number.

2221441425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2221441425 is an abundant number, since it is smaller than the sum of its proper divisors (2632355055).

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

2221441425 is a wasteful number, since it uses less digits than its factorization.

2221441425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 704 counting only the distinct ones).

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

The square root of 2221441425 is about 47132.1697463633. The cubic root of 2221441425 is about 1304.8030265971.

Adding to 2221441425 its reverse (5241441222), we get a palindrome (7462882647).

The spelling of 2221441425 in words is "two billion, two hundred twenty-one million, four hundred forty-one thousand, four hundred twenty-five".