221422047264040 has 128 divisors (see below), whose sum is σ = 580244158575360. Its totient is φ = 74467016792064.

The previous prime is 221422047264001. The next prime is 221422047264137. The reversal of 221422047264040 is 40462740224122.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 221422047263984 and 221422047264002.

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, 64468039 + ... + 67815721.

It is an arithmetic number, because the mean of its divisors is an integer number (4533157488870).

Almost surely, 2^{221422047264040} is an apocalyptic number.

221422047264040 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 221422047264040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290122079287680).

221422047264040 is an abundant number, since it is smaller than the sum of its proper divisors (358822111311320).

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

221422047264040 is a wasteful number, since it uses less digits than its factorization.

221422047264040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352211 (or 3352207 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 40.

Adding to 221422047264040 its reverse (40462740224122), we get a palindrome (261884787488162).

The spelling of 221422047264040 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, two hundred sixty-four thousand, forty".