121120021004 has 6 divisors (see below), whose sum is σ = 211960036764. Its totient is φ = 60560010500.

The previous prime is 121120020971. The next prime is 121120021027. The reversal of 121120021004 is 400120021121.

It is a happy number.

121120021004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 121120021004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15140002622 + ... + 15140002629.

It is an arithmetic number, because the mean of its divisors is an integer number (35326672794).

Almost surely, 2^121120021004 is an apocalyptic number.

It is an amenable number.

121120021004 is a deficient number, since it is larger than the sum of its proper divisors (90840015760).

121120021004 is a wasteful number, since it uses less digits than its factorization.

121120021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30280005255 (or 30280005253 counting only the distinct ones).

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

Adding to 121120021004 its reverse (400120021121), we get a palindrome (521240042125).

The spelling of 121120021004 in words is "one hundred twenty-one billion, one hundred twenty million, twenty-one thousand, four".