202212001002221 has 16 divisors (see below), whose sum is σ = 231390801463680. Its totient is φ = 173106054063360.

The previous prime is 202212001002211. The next prime is 202212001002293. The reversal of 202212001002221 is 122200100212202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202212001002221 - 2⁶ = 202212001002157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202212001002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212001002211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240660185 + ... + 241498961.

It is an arithmetic number, because the mean of its divisors is an integer number (14461925091480).

Almost surely, 2^{202212001002221} is an apocalyptic number.

It is an amenable number.

202212001002221 is a deficient number, since it is larger than the sum of its proper divisors (29178800461459).

202212001002221 is an equidigital number, since it uses as much as digits as its factorization.

202212001002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882164.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202212001002221 its reverse (122200100212202), we get a palindrome (324412101214423).

The spelling of 202212001002221 in words is "two hundred two trillion, two hundred twelve billion, one million, two thousand, two hundred twenty-one".