202120121233 has 2 divisors, whose sum is σ = 202120121234. Its totient is φ = 202120121232.

The previous prime is 202120121201. The next prime is 202120121309. The reversal of 202120121233 is 332121021202.

202120121233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184252987009 + 17867134224 = 429247^2 + 133668^2 .

It is a cyclic number.

It is not a de Polignac number, because 202120121233 - 2⁵ = 202120121201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202120121233.

It is not a weakly prime, because it can be changed into another prime (202120121633) 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 as a sum of consecutive naturals, namely, 101060060616 + 101060060617.

It is an arithmetic number, because the mean of its divisors is an integer number (101060060617).

Almost surely, 2^202120121233 is an apocalyptic number.

It is an amenable number.

202120121233 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120121233 is an equidigital number, since it uses as much as digits as its factorization.

202120121233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202120121233 its reverse (332121021202), we get a palindrome (534241142435).

The spelling of 202120121233 in words is "two hundred two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-three".