1002112122002 has 4 divisors (see below), whose sum is σ = 1503168183006. Its totient is φ = 501056061000.

The previous prime is 1002112121999. The next prime is 1002112122019. The reversal of 1002112122002 is 2002212112001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 692808187201 + 309303934801 = 832351^2 + 556151^2 .

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 as a sum of consecutive naturals, namely, 250528030499 + ... + 250528030502.

Almost surely, 2^{1002112122002} is an apocalyptic number.

1002112122002 is a deficient number, since it is larger than the sum of its proper divisors (501056061004).

1002112122002 is an equidigital number, since it uses as much as digits as its factorization.

1002112122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501056061003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002112122002 its reverse (2002212112001), we get a palindrome (3004324234003).

The spelling of 1002112122002 in words is "one trillion, two billion, one hundred twelve million, one hundred twenty-two thousand, two".