244243021212140 has 24 divisors (see below), whose sum is σ = 512910876201360. Its totient is φ = 97697107217088.

The previous prime is 244243021212139. The next prime is 244243021212143. The reversal of 244243021212140 is 41212120342442.

It is a junction number, because it is equal to n+sod(n) for n = 244243021212097 and 244243021212106.

It is not an unprimeable number, because it can be changed into a prime (244243021212143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15240926 + ... + 26847194.

It is an arithmetic number, because the mean of its divisors is an integer number (21371286508390).

Almost surely, 2^{244243021212140} is an apocalyptic number.

244243021212140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244243021212140 is an abundant number, since it is smaller than the sum of its proper divisors (268667854989220).

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

244243021212140 is a wasteful number, since it uses less digits than its factorization.

244243021212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12658481 (or 12658479 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 244243021212140 its reverse (41212120342442), we get a palindrome (285455141554582).

The spelling of 244243021212140 in words is "two hundred forty-four trillion, two hundred forty-three billion, twenty-one million, two hundred twelve thousand, one hundred forty".