121112021120202 has 24 divisors (see below), whose sum is σ = 299896433250336. Its totient is φ = 34603434605736.

The previous prime is 121112021120171. The next prime is 121112021120203. The reversal of 121112021120202 is 202021120211121.

121112021120202 is a `hidden beast` number, since 1 + 211 + 1 + 20 + 211 + 20 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121112021120203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480603258288 + ... + 480603258539.

It is an arithmetic number, because the mean of its divisors is an integer number (12495684718764).

Almost surely, 2^{121112021120202} is an apocalyptic number.

121112021120202 is an abundant number, since it is smaller than the sum of its proper divisors (178784412130134).

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

121112021120202 is a wasteful number, since it uses less digits than its factorization.

121112021120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961206516842 (or 961206516839 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121112021120202 its reverse (202021120211121), we get a palindrome (323133141331323).

The spelling of 121112021120202 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred two".