12121003004 has 24 divisors (see below), whose sum is σ = 23162584368. Its totient is φ = 5504192640.

The previous prime is 12121002997. The next prime is 12121003039. The reversal of 12121003004 is 40030012121.

It is a self number, because there is not a number n which added to its sum of digits gives 12121003004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87887 + ... + 178790.

It is an arithmetic number, because the mean of its divisors is an integer number (965107682).

Almost surely, 2^12121003004 is an apocalyptic number.

It is an amenable number.

12121003004 is a deficient number, since it is larger than the sum of its proper divisors (11041581364).

12121003004 is a wasteful number, since it uses less digits than its factorization.

12121003004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267725 (or 267723 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12121003004 its reverse (40030012121), we get a palindrome (52151015125).

The spelling of 12121003004 in words is "twelve billion, one hundred twenty-one million, three thousand, four".