121112021021202 has 48 divisors (see below), whose sum is σ = 274145681024280. Its totient is φ = 38592654912000.

The previous prime is 121112021021191. The next prime is 121112021021209. The reversal of 121112021021202 is 202120120211121.

121112021021202 is a `hidden beast` number, since 1 + 211 + 1 + 20 + 210 + 21 + 202 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 98192621189961 + 22919399831241 = 9909219^2 + 4787421^2 .

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 (121112021021209) 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, 1148538199 + ... + 1148643642.

Almost surely, 2^{121112021021202} is an apocalyptic number.

121112021021202 is an abundant number, since it is smaller than the sum of its proper divisors (153033660003078).

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

121112021021202 is a wasteful number, since it uses less digits than its factorization.

121112021021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297181979 (or 2297181976 counting only the distinct ones).

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

Adding to 121112021021202 its reverse (202120120211121), we get a palindrome (323232141232323).

The spelling of 121112021021202 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-one million, twenty-one thousand, two hundred two".