1001001012122 has 16 divisors (see below), whose sum is σ = 1516096634400. Its totient is φ = 495638939088.

The previous prime is 1001001012113. The next prime is 1001001012157. The reversal of 1001001012122 is 2212101001001.

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, 288953 + ... + 1444124.

It is an arithmetic number, because the mean of its divisors is an integer number (94756039650).

Almost surely, 2^{1001001012122} is an apocalyptic number.

1001001012122 is a deficient number, since it is larger than the sum of its proper divisors (515095622278).

1001001012122 is a wasteful number, since it uses less digits than its factorization.

1001001012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735885.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001001012122 its reverse (2212101001001), we get a palindrome (3213102013123).

The spelling of 1001001012122 in words is "one trillion, one billion, one million, twelve thousand, one hundred twenty-two".