121301202021066 has 24 divisors (see below), whose sum is σ = 262819474933860. Its totient is φ = 40433702639616.

The previous prime is 121301202020969. The next prime is 121301202021067. The reversal of 121301202021066 is 660120202103121.

121301202021066 is a `hidden beast` number, since 121 + 301 + 2 + 0 + 20 + 210 + 6 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 112386946815441 + 8914255205625 = 10601271^2 + 2985675^2 .

It is a super-2 number, since 2×121301202021066² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121301202021067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40078666 + ... + 42998858.

Almost surely, 2^{121301202021066} is an apocalyptic number.

121301202021066 is an abundant number, since it is smaller than the sum of its proper divisors (141518272912794).

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

121301202021066 is a wasteful number, since it uses less digits than its factorization.

121301202021066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5227910 (or 5227907 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 121301202021066 its reverse (660120202103121), we get a palindrome (781421404124187).

The spelling of 121301202021066 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred two million, twenty-one thousand, sixty-six".