210222164 has 12 divisors (see below), whose sum is σ = 375716544. Its totient is φ = 102874584.

The previous prime is 210222113. The next prime is 210222167. The reversal of 210222164 is 461222012.

It is a happy number.

210222164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558914 + ... + 559289.

It is an arithmetic number, because the mean of its divisors is an integer number (31309712).

Almost surely, 2^210222164 is an apocalyptic number.

It is an amenable number.

210222164 is a deficient number, since it is larger than the sum of its proper divisors (165494380).

210222164 is a wasteful number, since it uses less digits than its factorization.

210222164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118254 (or 1118252 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 210222164 is about 14499.0401061588. The cubic root of 210222164 is about 594.6017286221.

Adding to 210222164 its reverse (461222012), we get a palindrome (671444176).

The spelling of 210222164 in words is "two hundred ten million, two hundred twenty-two thousand, one hundred sixty-four".