12441420442 has 16 divisors (see below), whose sum is σ = 21060712800. Its totient is φ = 5460184240.

The previous prime is 12441420427. The next prime is 12441420461. The reversal of 12441420442 is 24402414421.

It is a happy number.

It is a super-2 number, since 2×12441420442² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12441420442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9749692 + ... + 9750967.

It is an arithmetic number, because the mean of its divisors is an integer number (1316294550).

Almost surely, 2^12441420442 is an apocalyptic number.

12441420442 is a deficient number, since it is larger than the sum of its proper divisors (8619292358).

12441420442 is a wasteful number, since it uses less digits than its factorization.

12441420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19500701.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 12441420442 its reverse (24402414421), we get a palindrome (36843834863).

The spelling of 12441420442 in words is "twelve billion, four hundred forty-one million, four hundred twenty thousand, four hundred forty-two".