12325535221642 has 96 divisors (see below), whose sum is σ = 20116365033600. Its totient is φ = 5642665276416.

The previous prime is 12325535221589. The next prime is 12325535221667. The reversal of 12325535221642 is 24612253552321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30135782734 + ... + 30135783142.

It is an arithmetic number, because the mean of its divisors is an integer number (209545469100).

Almost surely, 2^{12325535221642} is an apocalyptic number.

12325535221642 is a deficient number, since it is larger than the sum of its proper divisors (7790829811958).

12325535221642 is a wasteful number, since it uses less digits than its factorization.

12325535221642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 989 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

Adding to 12325535221642 its reverse (24612253552321), we get a palindrome (36937788773963).

The spelling of 12325535221642 in words is "twelve trillion, three hundred twenty-five billion, five hundred thirty-five million, two hundred twenty-one thousand, six hundred forty-two".