210212022021 has 4 divisors (see below), whose sum is σ = 280282696032. Its totient is φ = 140141348012.

The previous prime is 210212022001. The next prime is 210212022023. The reversal of 210212022021 is 120220212012.

210212022021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210212022021 - 2¹¹ = 210212019973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212022023) 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 3 ways as a sum of consecutive naturals, for example, 35035337001 + ... + 35035337006.

It is an arithmetic number, because the mean of its divisors is an integer number (70070674008).

Almost surely, 2^210212022021 is an apocalyptic number.

It is an amenable number.

210212022021 is a deficient number, since it is larger than the sum of its proper divisors (70070674011).

210212022021 is an equidigital number, since it uses as much as digits as its factorization.

210212022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70070674010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210212022021 its reverse (120220212012), we get a palindrome (330432234033).

The spelling of 210212022021 in words is "two hundred ten billion, two hundred twelve million, twenty-two thousand, twenty-one".