12144422025 has 36 divisors (see below), whose sum is σ = 21788444860. Its totient is φ = 6466176000.

The previous prime is 12144422021. The next prime is 12144422029. The reversal of 12144422025 is 52022444121.

It is a happy number.

12144422025 is a `hidden beast` number, since 1 + 2 + 14 + 442 + 202 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (12144422021) and next prime (12144422029).

It can be written as a sum of positive squares in 6 ways, for example, as 1089792144 + 11054629881 = 33012^2 + 105141^2 .

It is not a de Polignac number, because 12144422025 - 2² = 12144422021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12144422025.

It is not an unprimeable number, because it can be changed into a prime (12144422021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 90321 + ... + 180129.

Almost surely, 2^12144422025 is an apocalyptic number.

12144422025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12144422025 is a deficient number, since it is larger than the sum of its proper divisors (9644022835).

12144422025 is a wasteful number, since it uses less digits than its factorization.

12144422025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90426 (or 90418 counting only the distinct ones).

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

Adding to 12144422025 its reverse (52022444121), we get a palindrome (64166866146).

The spelling of 12144422025 in words is "twelve billion, one hundred forty-four million, four hundred twenty-two thousand, twenty-five".