121111202020204 has 48 divisors (see below), whose sum is σ = 232866128628000. Its totient is φ = 54657100454400.

The previous prime is 121111202020189. The next prime is 121111202020223. The reversal of 121111202020204 is 402020202111121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10904842 + ... + 19003630.

It is an arithmetic number, because the mean of its divisors is an integer number (4851377679750).

Almost surely, 2^{121111202020204} is an apocalyptic number.

It is an amenable number.

121111202020204 is a deficient number, since it is larger than the sum of its proper divisors (111754926607796).

121111202020204 is a wasteful number, since it uses less digits than its factorization.

121111202020204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101234 (or 8101232 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121111202020204 its reverse (402020202111121), we get a palindrome (523131404131325).

The spelling of 121111202020204 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred two million, twenty thousand, two hundred four".