10215425442 has 16 divisors (see below), whose sum is σ = 20442606912. Its totient is φ = 3403182480.

The previous prime is 10215425399. The next prime is 10215425447. The reversal of 10215425442 is 24452451201.

It is a super-2 number, since 2×10215425442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10215425447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478518 + ... + 499409.

It is an arithmetic number, because the mean of its divisors is an integer number (1277662932).

Almost surely, 2^10215425442 is an apocalyptic number.

10215425442 is an abundant number, since it is smaller than the sum of its proper divisors (10227181470).

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

10215425442 is a wasteful number, since it uses less digits than its factorization.

10215425442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979673.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 10215425442 its reverse (24452451201), we get a palindrome (34667876643).

The spelling of 10215425442 in words is "ten billion, two hundred fifteen million, four hundred twenty-five thousand, four hundred forty-two".