1001220122012 has 48 divisors (see below), whose sum is σ = 1956561868800. Its totient is φ = 444359516160.

The previous prime is 1001220121999. The next prime is 1001220122033. The reversal of 1001220122012 is 2102210221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5355164 + ... + 5538972.

It is an arithmetic number, because the mean of its divisors is an integer number (40761705600).

Almost surely, 2^{1001220122012} is an apocalyptic number.

It is an amenable number.

1001220122012 is a deficient number, since it is larger than the sum of its proper divisors (955341746788).

1001220122012 is a wasteful number, since it uses less digits than its factorization.

1001220122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186746 (or 186744 counting only the distinct ones).

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

Adding to 1001220122012 its reverse (2102210221001), we get a palindrome (3103430343013).

The spelling of 1001220122012 in words is "one trillion, one billion, two hundred twenty million, one hundred twenty-two thousand, twelve".