44000121220 has 24 divisors (see below), whose sum is σ = 100800278208. Its totient is φ = 16000044000.

The previous prime is 44000121203. The next prime is 44000121289. The reversal of 44000121220 is 2212100044.

It is a junction number, because it is equal to n+sod(n) for n = 44000121194 and 44000121203.

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, 100000056 + ... + 100000495.

It is an arithmetic number, because the mean of its divisors is an integer number (4200011592).

Almost surely, 2^44000121220 is an apocalyptic number.

It is an amenable number.

44000121220 is an abundant number, since it is smaller than the sum of its proper divisors (56800156988).

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

44000121220 is a wasteful number, since it uses less digits than its factorization.

44000121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200000571 (or 200000569 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 44000121220 its reverse (2212100044), we get a palindrome (46212221264).

The spelling of 44000121220 in words is "forty-four billion, one hundred twenty-one thousand, two hundred twenty".