21144110 has 32 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 7614720.

The previous prime is 21144083. The next prime is 21144119. The reversal of 21144110 is 1144112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21144119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3347 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^21144110 is an apocalyptic number.

21144110 is a deficient number, since it is larger than the sum of its proper divisors (20853202).

21144110 is a wasteful number, since it uses less digits than its factorization.

21144110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 21144110 is about 4598.2725017119. The cubic root of 21144110 is about 276.5220724738.

Adding to 21144110 its reverse (1144112), we get a palindrome (22288222).

The spelling of 21144110 in words is "twenty-one million, one hundred forty-four thousand, one hundred ten".