121111012002 has 128 divisors (see below), whose sum is σ = 265903368192. Its totient is φ = 36668403200.

The previous prime is 121111011929. The next prime is 121111012013. The reversal of 121111012002 is 200210111121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39281953 + ... + 39285035.

It is an arithmetic number, because the mean of its divisors is an integer number (2077370064).

Almost surely, 2^121111012002 is an apocalyptic number.

121111012002 is an abundant number, since it is smaller than the sum of its proper divisors (144792356190).

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

121111012002 is a wasteful number, since it uses less digits than its factorization.

121111012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121111012002 its reverse (200210111121), we get a palindrome (321321123123).

The spelling of 121111012002 in words is "one hundred twenty-one billion, one hundred eleven million, twelve thousand, two".