44220121000 has 64 divisors (see below), whose sum is σ = 112881936960. Its totient is φ = 16080040000.

The previous prime is 44220120977. The next prime is 44220121003. The reversal of 44220121000 is 12102244.

It is not an unprimeable number, because it can be changed into a prime (44220121003) 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, 1999006 + ... + 2021005.

It is an arithmetic number, because the mean of its divisors is an integer number (1763780265).

Almost surely, 2^44220121000 is an apocalyptic number.

44220121000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44220121000 is an abundant number, since it is smaller than the sum of its proper divisors (68661815960).

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

44220121000 is a wasteful number, since it uses less digits than its factorization.

44220121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020043 (or 4020029 counting only the distinct ones).

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

Adding to 44220121000 its reverse (12102244), we get a palindrome (44232223244).

The spelling of 44220121000 in words is "forty-four billion, two hundred twenty million, one hundred twenty-one thousand".