244120421020 has 96 divisors (see below), whose sum is σ = 589086360576. Its totient is φ = 83242252800.

The previous prime is 244120421011. The next prime is 244120421033. The reversal of 244120421020 is 20124021442.

It is a junction number, because it is equal to n+sod(n) for n = 244120420982 and 244120421000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67378929 + ... + 67382551.

It is an arithmetic number, because the mean of its divisors is an integer number (6136316256).

Almost surely, 2^244120421020 is an apocalyptic number.

244120421020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244120421020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294543180288).

244120421020 is an abundant number, since it is smaller than the sum of its proper divisors (344965939556).

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

244120421020 is a wasteful number, since it uses less digits than its factorization.

244120421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6129 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 244120421020 its reverse (20124021442), we get a palindrome (264244442462).

The spelling of 244120421020 in words is "two hundred forty-four billion, one hundred twenty million, four hundred twenty-one thousand, twenty".