241212221040 has 160 divisors (see below), whose sum is σ = 854913139200. Its totient is φ = 55112758272.

The previous prime is 241212221039. The next prime is 241212221053. The reversal of 241212221040 is 40122212142.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 241212220998 and 241212221016.

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, 4507722 + ... + 4560918.

It is an arithmetic number, because the mean of its divisors is an integer number (5343207120).

Almost surely, 2^241212221040 is an apocalyptic number.

241212221040 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 241212221040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427456569600).

241212221040 is an abundant number, since it is smaller than the sum of its proper divisors (613700918160).

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

241212221040 is a wasteful number, since it uses less digits than its factorization.

241212221040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55919 (or 55913 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 241212221040 its reverse (40122212142), we get a palindrome (281334433182).

The spelling of 241212221040 in words is "two hundred forty-one billion, two hundred twelve million, two hundred twenty-one thousand, forty".