202102121011 has 8 divisors (see below), whose sum is σ = 231396112640. Its totient is φ = 172913694408.

The previous prime is 202102121009. The next prime is 202102121033. The reversal of 202102121011 is 110121201202.

202102121011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202102121011 - 2¹ = 202102121009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202102120982 and 202102121000.

It is not an unprimeable number, because it can be changed into a prime (202102181011) 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 7 ways as a sum of consecutive naturals, for example, 26387151 + ... + 26394808.

It is an arithmetic number, because the mean of its divisors is an integer number (28924514080).

Almost surely, 2^202102121011 is an apocalyptic number.

202102121011 is a deficient number, since it is larger than the sum of its proper divisors (29293991629).

202102121011 is an equidigital number, since it uses as much as digits as its factorization.

202102121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52782513.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202102121011 its reverse (110121201202), we get a palindrome (312223322213).

The spelling of 202102121011 in words is "two hundred two billion, one hundred two million, one hundred twenty-one thousand, eleven".