121123120202 has 16 divisors (see below), whose sum is σ = 207645035712. Its totient is φ = 51908558400.

The previous prime is 121123120141. The next prime is 121123120231. The reversal of 121123120202 is 202021321121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600893 + ... + 776735.

It is an arithmetic number, because the mean of its divisors is an integer number (12977814732).

Almost surely, 2^121123120202 is an apocalyptic number.

121123120202 is a deficient number, since it is larger than the sum of its proper divisors (86521915510).

121123120202 is a wasteful number, since it uses less digits than its factorization.

121123120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225053.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121123120202 its reverse (202021321121), we get a palindrome (323144441323).

The spelling of 121123120202 in words is "one hundred twenty-one billion, one hundred twenty-three million, one hundred twenty thousand, two hundred two".