121011110020002 has 16 divisors (see below), whose sum is σ = 242597094676992. Its totient is φ = 40241224233840.

The previous prime is 121011110019973. The next prime is 121011110020007. The reversal of 121011110020002 is 200020011110121.

It is a self number, because there is not a number n which added to its sum of digits gives 121011110020002.

It is not an unprimeable number, because it can be changed into a prime (121011110020007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23953107138 + ... + 23953112189.

It is an arithmetic number, because the mean of its divisors is an integer number (15162318417312).

Almost surely, 2^{121011110020002} is an apocalyptic number.

121011110020002 is an abundant number, since it is smaller than the sum of its proper divisors (121585984656990).

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

121011110020002 is a wasteful number, since it uses less digits than its factorization.

121011110020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47906219753.

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

Adding to 121011110020002 its reverse (200020011110121), we get a palindrome (321031121130123).

The spelling of 121011110020002 in words is "one hundred twenty-one trillion, eleven billion, one hundred ten million, twenty thousand, two".