120001021004 has 6 divisors (see below), whose sum is σ = 210001786764. Its totient is φ = 60000510500.

The previous prime is 120001021001. The next prime is 120001021061. The reversal of 120001021004 is 400120100021.

It is not an unprimeable number, because it can be changed into a prime (120001021001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000127622 + ... + 15000127629.

It is an arithmetic number, because the mean of its divisors is an integer number (35000297794).

Almost surely, 2^120001021004 is an apocalyptic number.

It is an amenable number.

120001021004 is a deficient number, since it is larger than the sum of its proper divisors (90000765760).

120001021004 is a wasteful number, since it uses less digits than its factorization.

120001021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30000255255 (or 30000255253 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120001021004 its reverse (400120100021), we get a palindrome (520121121025).

The spelling of 120001021004 in words is "one hundred twenty billion, one million, twenty-one thousand, four".