20227122 has 12 divisors (see below), whose sum is σ = 43825470. Its totient is φ = 6742368.

The previous prime is 20227121. The next prime is 20227133. The reversal of 20227122 is 22172202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19105641 + 1121481 = 4371^2 + 1059^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1123729 = 20227122 / (2 + 0 + 2 + 2 + 7 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20227095 and 20227104.

It is not an unprimeable number, because it can be changed into a prime (20227121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561847 + ... + 561882.

Almost surely, 2^20227122 is an apocalyptic number.

20227122 is an abundant number, since it is smaller than the sum of its proper divisors (23598348).

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

20227122 is a wasteful number, since it uses less digits than its factorization.

20227122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123737 (or 1123734 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 20227122 is about 4497.4572816204. The cubic root of 20227122 is about 272.4654031211.

Adding to 20227122 its reverse (22172202), we get a palindrome (42399324).

The spelling of 20227122 in words is "twenty million, two hundred twenty-seven thousand, one hundred twenty-two".