210222232021 has 2 divisors, whose sum is σ = 210222232022. Its totient is φ = 210222232020.

The previous prime is 210222231991. The next prime is 210222232063. The reversal of 210222232021 is 120232222012.

210222232021 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., 152244334225 + 57977897796 = 390185^2 + 240786^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222232021 - 2⁷ = 210222231893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210222232021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210222232321) 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, 105111116010 + 105111116011.

It is an arithmetic number, because the mean of its divisors is an integer number (105111116011).

Almost surely, 2^210222232021 is an apocalyptic number.

It is an amenable number.

210222232021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222232021 is an equidigital number, since it uses as much as digits as its factorization.

210222232021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 210222232021 its reverse (120232222012), we get a palindrome (330454454033).

The spelling of 210222232021 in words is "two hundred ten billion, two hundred twenty-two million, two hundred thirty-two thousand, twenty-one".