21214144210 has 32 divisors (see below), whose sum is σ = 44048396160. Its totient is φ = 7205442432.

The previous prime is 21214144207. The next prime is 21214144241. The reversal of 21214144210 is 1244141212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1408675 + ... + 1423654.

It is an arithmetic number, because the mean of its divisors is an integer number (1376512380).

Almost surely, 2^21214144210 is an apocalyptic number.

21214144210 is an abundant number, since it is smaller than the sum of its proper divisors (22834251950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21214144210 is a wasteful number, since it uses less digits than its factorization.

21214144210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832450.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21214144210 its reverse (1244141212), we get a palindrome (22458285422).

The spelling of 21214144210 in words is "twenty-one billion, two hundred fourteen million, one hundred forty-four thousand, two hundred ten".