210423122 has 16 divisors (see below), whose sum is σ = 388473792. Its totient is φ = 83244240.

The previous prime is 210423061. The next prime is 210423131. The reversal of 210423122 is 221324012.

It is a self number, because there is not a number n which added to its sum of digits gives 210423122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577904 + ... + 578267.

It is an arithmetic number, because the mean of its divisors is an integer number (24279612).

Almost surely, 2^210423122 is an apocalyptic number.

210423122 is a deficient number, since it is larger than the sum of its proper divisors (178050670).

210423122 is a wasteful number, since it uses less digits than its factorization.

210423122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156193.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 210423122 is about 14505.9684957606. The cubic root of 210423122 is about 594.7911344668.

Adding to 210423122 its reverse (221324012), we get a palindrome (431747134).

The spelling of 210423122 in words is "two hundred ten million, four hundred twenty-three thousand, one hundred twenty-two".