1001213122004 has 24 divisors (see below), whose sum is σ = 1852756313856. Its totient is φ = 472641912000.

The previous prime is 1001213122001. The next prime is 1001213122043. The reversal of 1001213122004 is 4002213121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001213122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98461982 + ... + 98472149.

It is an arithmetic number, because the mean of its divisors is an integer number (77198179744).

Almost surely, 2^{1001213122004} is an apocalyptic number.

It is an amenable number.

1001213122004 is a deficient number, since it is larger than the sum of its proper divisors (851543191852).

1001213122004 is a wasteful number, since it uses less digits than its factorization.

1001213122004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196934207 (or 196934205 counting only the distinct ones).

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

Adding to 1001213122004 its reverse (4002213121001), we get a palindrome (5003426243005).

The spelling of 1001213122004 in words is "one trillion, one billion, two hundred thirteen million, one hundred twenty-two thousand, four".