1002121322442 has 32 divisors (see below), whose sum is σ = 2058639611712. Its totient is φ = 324976281984.

The previous prime is 1002121322441. The next prime is 1002121322497. The reversal of 1002121322442 is 2442231212001.

It is not an unprimeable number, because it can be changed into a prime (1002121322441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1793838 + ... + 2285190.

It is an arithmetic number, because the mean of its divisors is an integer number (64332487866).

Almost surely, 2^{1002121322442} is an apocalyptic number.

1002121322442 is an abundant number, since it is smaller than the sum of its proper divisors (1056518289270).

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

1002121322442 is a wasteful number, since it uses less digits than its factorization.

1002121322442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500582.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1002121322442 its reverse (2442231212001), we get a palindrome (3444352534443).

The spelling of 1002121322442 in words is "one trillion, two billion, one hundred twenty-one million, three hundred twenty-two thousand, four hundred forty-two".