20412222 has 8 divisors (see below), whose sum is σ = 40824456. Its totient is φ = 6804072.

The previous prime is 20412221. The next prime is 20412233. The reversal of 20412222 is 22221402.

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

20412222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1701013 + ... + 1701024.

It is an arithmetic number, because the mean of its divisors is an integer number (5103057).

Almost surely, 2^20412222 is an apocalyptic number.

20412222 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.

20412222 is a wasteful number, since it uses less digits than its factorization.

20412222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402042.

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

The square root of 20412222 is about 4517.9887118053. The cubic root of 20412222 is about 273.2939982394.

Adding to 20412222 its reverse (22221402), we get a palindrome (42633624).

The spelling of 20412222 in words is "twenty million, four hundred twelve thousand, two hundred twenty-two".