21224202110 has 16 divisors (see below), whose sum is σ = 38495196432. Its totient is φ = 8424873600.

The previous prime is 21224202091. The next prime is 21224202113. The reversal of 21224202110 is 1120242212.

It is a super-2 number, since 2×21224202110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21224202113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8099531 + ... + 8102150.

It is an arithmetic number, because the mean of its divisors is an integer number (2405949777).

Almost surely, 2^21224202110 is an apocalyptic number.

21224202110 is a deficient number, since it is larger than the sum of its proper divisors (17270994322).

21224202110 is a wasteful number, since it uses less digits than its factorization.

21224202110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16201819.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21224202110 its reverse (1120242212), we get a palindrome (22344444322).

The spelling of 21224202110 in words is "twenty-one billion, two hundred twenty-four million, two hundred two thousand, one hundred ten".