20440200222 has 24 divisors (see below), whose sum is σ = 47693801064. Its totient is φ = 6289292304.

The previous prime is 20440200217. The next prime is 20440200233. The reversal of 20440200222 is 22200204402.

20440200222 is a `hidden beast` number, since 2 + 0 + 440 + 2 + 0 + 0 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20440200195 and 20440200204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43675408 + ... + 43675875.

It is an arithmetic number, because the mean of its divisors is an integer number (1987241711).

Almost surely, 2^20440200222 is an apocalyptic number.

20440200222 is an abundant number, since it is smaller than the sum of its proper divisors (27253600842).

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

20440200222 is a wasteful number, since it uses less digits than its factorization.

20440200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87351304 (or 87351301 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20440200222 its reverse (22200204402), we get a palindrome (42640404624).

The spelling of 20440200222 in words is "twenty billion, four hundred forty million, two hundred thousand, two hundred twenty-two".