4441212121225 has 12 divisors (see below), whose sum is σ = 6007748760720. Its totient is φ = 3229972451600.

The previous prime is 4441212121223. The next prime is 4441212121231. The reversal of 4441212121225 is 5221212121444.

It is a happy number.

It is not a de Polignac number, because 4441212121225 - 2¹ = 4441212121223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4441212121223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8074930855 + ... + 8074931404.

It is an arithmetic number, because the mean of its divisors is an integer number (500645730060).

Almost surely, 2^{4441212121225} is an apocalyptic number.

It is an amenable number.

4441212121225 is a deficient number, since it is larger than the sum of its proper divisors (1566536639495).

4441212121225 is a wasteful number, since it uses less digits than its factorization.

4441212121225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16149862280 (or 16149862275 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

Adding to 4441212121225 its reverse (5221212121444), we get a palindrome (9662424242669).

The spelling of 4441212121225 in words is "four trillion, four hundred forty-one billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twenty-five".