42220203231425 has 24 divisors (see below), whose sum is σ = 53638118445912. Its totient is φ = 32947338240000.

The previous prime is 42220203231397. The next prime is 42220203231433. The reversal of 42220203231425 is 52413230202224.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 19000680486529 + 23219522744896 = 4358977^2 + 4818664^2 .

It is not a de Polignac number, because 42220203231425 - 2¹⁸ = 42220202969281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42220203231391 and 42220203231400.

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 23 ways as a sum of consecutive naturals, for example, 3610025 + ... + 9872825.

It is an arithmetic number, because the mean of its divisors is an integer number (2234921601913).

Almost surely, 2^{42220203231425} is an apocalyptic number.

It is an amenable number.

42220203231425 is a deficient number, since it is larger than the sum of its proper divisors (11417915214487).

42220203231425 is a wasteful number, since it uses less digits than its factorization.

42220203231425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269429 (or 6269424 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 42220203231425 its reverse (52413230202224), we get a palindrome (94633433433649).

The spelling of 42220203231425 in words is "forty-two trillion, two hundred twenty billion, two hundred three million, two hundred thirty-one thousand, four hundred twenty-five".