4251222354440 has 32 divisors (see below), whose sum is σ = 9659955755160. Its totient is φ = 1683652416000.

The previous prime is 4251222354413. The next prime is 4251222354499. The reversal of 4251222354440 is 444532221524.

It can be written as a sum of positive squares in 4 ways, for example, as 3915024164164 + 336198190276 = 1978642^2 + 579826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4251222354394 and 4251222354403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526137341 + ... + 526145420.

Almost surely, 2^{4251222354440} is an apocalyptic number.

4251222354440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4251222354440 is an abundant number, since it is smaller than the sum of its proper divisors (5408733400720).

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

4251222354440 is a wasteful number, since it uses less digits than its factorization.

4251222354440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052282873 (or 1052282869 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 4251222354440 its reverse (444532221524), we get a palindrome (4695754575964).

The spelling of 4251222354440 in words is "four trillion, two hundred fifty-one billion, two hundred twenty-two million, three hundred fifty-four thousand, four hundred forty".