1001012221112 has 16 divisors (see below), whose sum is σ = 1882012083360. Its totient is φ = 499142332224.

The previous prime is 1001012221073. The next prime is 1001012221123. The reversal of 1001012221112 is 2111222101001.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 170469173 + ... + 170475044.

It is an arithmetic number, because the mean of its divisors is an integer number (117625755210).

Almost surely, 2^{1001012221112} is an apocalyptic number.

It is an amenable number.

1001012221112 is a deficient number, since it is larger than the sum of its proper divisors (880999862248).

1001012221112 is a wasteful number, since it uses less digits than its factorization.

1001012221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340944590 (or 340944586 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001012221112 its reverse (2111222101001), we get a palindrome (3112234322113).

The spelling of 1001012221112 in words is "one trillion, one billion, twelve million, two hundred twenty-one thousand, one hundred twelve".