121111012102002 has 64 divisors (see below), whose sum is σ = 267212070840960. Its totient is φ = 36365921201664.

The previous prime is 121111012102001. The next prime is 121111012102019. The reversal of 121111012102002 is 200201210111121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121111012102001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95417113 + ... + 96678060.

It is an arithmetic number, because the mean of its divisors is an integer number (4175188606890).

Almost surely, 2^{121111012102002} is an apocalyptic number.

121111012102002 is an abundant number, since it is smaller than the sum of its proper divisors (146101058738958).

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

121111012102002 is a wasteful number, since it uses less digits than its factorization.

121111012102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192095387.

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

Adding to 121111012102002 its reverse (200201210111121), we get a palindrome (321312222213123).

The spelling of 121111012102002 in words is "one hundred twenty-one trillion, one hundred eleven billion, twelve million, one hundred two thousand, two".