6221112240 has 320 divisors, whose sum is σ = 23952752640. Its totient is φ = 1303464960.

The previous prime is 6221112239. The next prime is 6221112251. The reversal of 6221112240 is 422111226.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 986377 + ... + 992663.

It is an arithmetic number, because the mean of its divisors is an integer number (74852352).

Almost surely, 2^6221112240 is an apocalyptic number.

6221112240 is a gapful number since it is divisible by the number (60) 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 6221112240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11976376320).

6221112240 is an abundant number, since it is smaller than the sum of its proper divisors (17731640400).

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

6221112240 is a wasteful number, since it uses less digits than its factorization.

6221112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360 (or 6354 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 6221112240 is about 78874.0276643712. The cubic root of 6221112240 is about 1839.1734078646.

Adding to 6221112240 its reverse (422111226), we get a palindrome (6643223466).

The spelling of 6221112240 in words is "six billion, two hundred twenty-one million, one hundred twelve thousand, two hundred forty".