1000002102122 has 16 divisors (see below), whose sum is σ = 1589405670792. Its totient is φ = 470243435520.

The previous prime is 1000002102019. The next prime is 1000002102167. The reversal of 1000002102122 is 2212012000001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 977846077321 + 22156024801 = 988861^2 + 148849^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 10758953 + ... + 10851500.

Almost surely, 2^{1000002102122} is an apocalyptic number.

1000002102122 is a deficient number, since it is larger than the sum of its proper divisors (589403568670).

1000002102122 is a wasteful number, since it uses less digits than its factorization.

1000002102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611833.

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

Adding to 1000002102122 its reverse (2212012000001), we get a palindrome (3212014102123).

The spelling of 1000002102122 in words is "one trillion, two million, one hundred two thousand, one hundred twenty-two".