20444222220044 has 48 divisors (see below), whose sum is σ = 41183927178240. Its totient is φ = 8698495841280.

The previous prime is 20444222220041. The next prime is 20444222220053. The reversal of 20444222220044 is 44002222244402.

It is not an unprimeable number, because it can be changed into a prime (20444222220041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160602029 + ... + 160729275.

It is an arithmetic number, because the mean of its divisors is an integer number (857998482880).

Almost surely, 2^{20444222220044} is an apocalyptic number.

It is an amenable number.

20444222220044 is an abundant number, since it is smaller than the sum of its proper divisors (20739704958196).

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

20444222220044 is a wasteful number, since it uses less digits than its factorization.

20444222220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168678 (or 168676 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20444222220044 its reverse (44002222244402), we get a palindrome (64446444464446).

The spelling of 20444222220044 in words is "twenty trillion, four hundred forty-four billion, two hundred twenty-two million, two hundred twenty thousand, forty-four".