121505021223004 has 12 divisors (see below), whose sum is σ = 212634616851328. Its totient is φ = 60752273551200.

The previous prime is 121505021222909. The next prime is 121505021223023. The reversal of 121505021223004 is 400322120505121.

It is a happy number.

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, 58109337 + ... + 60163984.

Almost surely, 2^{121505021223004} is an apocalyptic number.

It is an amenable number.

121505021223004 is a deficient number, since it is larger than the sum of its proper divisors (91129595628324).

121505021223004 is a wasteful number, since it uses less digits than its factorization.

121505021223004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118530156 (or 118530154 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 121505021223004 its reverse (400322120505121), we get a palindrome (521827141728125).

The spelling of 121505021223004 in words is "one hundred twenty-one trillion, five hundred five billion, twenty-one million, two hundred twenty-three thousand, four".