20481222 has 16 divisors (see below), whose sum is σ = 41962032. Its totient is φ = 6660480.

The previous prime is 20481217. The next prime is 20481257. The reversal of 20481222 is 22218402.

It is a happy number.

It is a super-2 number, since 2×20481222² = 838960909226568, which contains 22 as substring.

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, 41383 + ... + 41874.

It is an arithmetic number, because the mean of its divisors is an integer number (2622627).

Almost surely, 2^20481222 is an apocalyptic number.

20481222 is an abundant number, since it is smaller than the sum of its proper divisors (21480810).

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

20481222 is a wasteful number, since it uses less digits than its factorization.

20481222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83303.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 20481222 is about 4525.6184107810. The cubic root of 20481222 is about 273.6015930022.

Adding to 20481222 its reverse (22218402), we get a palindrome (42699624).

The spelling of 20481222 in words is "twenty million, four hundred eighty-one thousand, two hundred twenty-two".