1002001002122 has 8 divisors (see below), whose sum is σ = 1503288515556. Its totient is φ = 500904830272.

The previous prime is 1002001002109. The next prime is 1002001002127. The reversal of 1002001002122 is 2212001002001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1001458531441 + 542470681 = 1000729^2 + 23291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1002001002127) 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 3 ways as a sum of consecutive naturals, for example, 47822303 + ... + 47843250.

Almost surely, 2^{1002001002122} is an apocalyptic number.

1002001002122 is a deficient number, since it is larger than the sum of its proper divisors (501287513434).

1002001002122 is an equidigital number, since it uses as much as digits as its factorization.

1002001002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95670792.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002001002122 its reverse (2212001002001), we get a palindrome (3214002004123).

The spelling of 1002001002122 in words is "one trillion, two billion, one million, two thousand, one hundred twenty-two".