1001223122012 has 12 divisors (see below), whose sum is σ = 1762632323760. Its totient is φ = 497613886656.

The previous prime is 1001223121967. The next prime is 1001223122051. The reversal of 1001223122012 is 2102213221001.

1001223122012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749417837 + ... + 749419172.

It is an arithmetic number, because the mean of its divisors is an integer number (146886026980).

Almost surely, 2^{1001223122012} is an apocalyptic number.

It is an amenable number.

1001223122012 is a deficient number, since it is larger than the sum of its proper divisors (761409201748).

1001223122012 is a wasteful number, since it uses less digits than its factorization.

1001223122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498837180 (or 1498837178 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1001223122012 its reverse (2102213221001), we get a palindrome (3103436343013).

The spelling of 1001223122012 in words is "one trillion, one billion, two hundred twenty-three million, one hundred twenty-two thousand, twelve".