121002120111102 has 32 divisors (see below), whose sum is σ = 247956495784704. Its totient is φ = 39342391992000.

The previous prime is 121002120111077. The next prime is 121002120111121. The reversal of 121002120111102 is 201111021200121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48089274 + ... + 50542877.

It is an arithmetic number, because the mean of its divisors is an integer number (7748640493272).

Almost surely, 2^{121002120111102} is an apocalyptic number.

121002120111102 is an abundant number, since it is smaller than the sum of its proper divisors (126954375673602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121002120111102 is a wasteful number, since it uses less digits than its factorization.

121002120111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98637184.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121002120111102 its reverse (201111021200121), we get a palindrome (322113141311223).

The spelling of 121002120111102 in words is "one hundred twenty-one trillion, two billion, one hundred twenty million, one hundred eleven thousand, one hundred two".