5211442225444 has 96 divisors (see below), whose sum is σ = 11292546585600. Its totient is φ = 2049229808640.

The previous prime is 5211442225417. The next prime is 5211442225489. The reversal of 5211442225444 is 4445222441125.

It is a super-2 number, since 2×5211442225444² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5211442225397 and 5211442225406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47009472 + ... + 47120200.

It is an arithmetic number, because the mean of its divisors is an integer number (117630693600).

Almost surely, 2^{5211442225444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5211442225444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5646273292800).

5211442225444 is an abundant number, since it is smaller than the sum of its proper divisors (6081104360156).

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

5211442225444 is a wasteful number, since it uses less digits than its factorization.

5211442225444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111533 (or 111531 counting only the distinct ones).

The product of its digits is 409600, while the sum is 40.

Adding to 5211442225444 its reverse (4445222441125), we get a palindrome (9656664666569).

The spelling of 5211442225444 in words is "five trillion, two hundred eleven billion, four hundred forty-two million, two hundred twenty-five thousand, four hundred forty-four".