12202020121021 has 16 divisors (see below), whose sum is σ = 12784530626560. Its totient is φ = 11632006114560.

The previous prime is 12202020120977. The next prime is 12202020121069. The reversal of 12202020121021 is 12012102020221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12202020121021 - 2⁷ = 12202020120893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12202020120986 and 12202020121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202020161021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4692990 + ... + 6813823.

It is an arithmetic number, because the mean of its divisors is an integer number (799033164160).

Almost surely, 2^{12202020121021} is an apocalyptic number.

It is an amenable number.

12202020121021 is a deficient number, since it is larger than the sum of its proper divisors (582510505539).

12202020121021 is a wasteful number, since it uses less digits than its factorization.

12202020121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507356.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12202020121021 its reverse (12012102020221), we get a palindrome (24214122141242).

The spelling of 12202020121021 in words is "twelve trillion, two hundred two billion, twenty million, one hundred twenty-one thousand, twenty-one".