20124222 has 8 divisors (see below), whose sum is σ = 40248456. Its totient is φ = 6708072.

The previous prime is 20124217. The next prime is 20124229. The reversal of 20124222 is 22242102.

It is a sphenic number, since it is the product of 3 distinct primes.

20124222 is an admirable number.

It is a super-2 number, since 2×20124222² = 809968622210568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677013 + ... + 1677024.

It is an arithmetic number, because the mean of its divisors is an integer number (5031057).

Almost surely, 2^20124222 is an apocalyptic number.

20124222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20124222 is a wasteful number, since it uses less digits than its factorization.

20124222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354042.

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

The square root of 20124222 is about 4486.0028979037. The cubic root of 20124222 is about 272.0025861202.

Adding to 20124222 its reverse (22242102), we get a palindrome (42366324).

The spelling of 20124222 in words is "twenty million, one hundred twenty-four thousand, two hundred twenty-two".