20122224 has 40 divisors (see below), whose sum is σ = 53663232. Its totient is φ = 6490560.

The previous prime is 20122213. The next prime is 20122241. The reversal of 20122224 is 42222102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5274 + ... + 8249.

Almost surely, 2^20122224 is an apocalyptic number.

20122224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20122224 is an abundant number, since it is smaller than the sum of its proper divisors (33541008).

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

20122224 is a wasteful number, since it uses less digits than its factorization.

20122224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13565 (or 13559 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20122224 is about 4485.7801996977. The cubic root of 20122224 is about 271.9935840470.

Adding to 20122224 its reverse (42222102), we get a palindrome (62344326).

The spelling of 20122224 in words is "twenty million, one hundred twenty-two thousand, two hundred twenty-four".