121221120110002 has 48 divisors (see below), whose sum is σ = 209440868457024. Its totient is φ = 52178175972000.

The previous prime is 121221120109981. The next prime is 121221120110009. The reversal of 121221120110002 is 200011021122121.

It is not an unprimeable number, because it can be changed into a prime (121221120110009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15332227 + ... + 21852217.

It is an arithmetic number, because the mean of its divisors is an integer number (4363351426188).

Almost surely, 2^{121221120110002} is an apocalyptic number.

121221120110002 is a deficient number, since it is larger than the sum of its proper divisors (88219748347022).

121221120110002 is a wasteful number, since it uses less digits than its factorization.

121221120110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522383 (or 6522364 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121221120110002 its reverse (200011021122121), we get a palindrome (321232141232123).

The spelling of 121221120110002 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred twenty million, one hundred ten thousand, two".