222781604783472 has 1080 divisors, whose sum is σ = 795526920494592. Its totient is φ = 60164223033600.

The previous prime is 222781604783417. The next prime is 222781604783473. The reversal of 222781604783472 is 274387406187222.

222781604783472 is a `hidden beast` number, since 2 + 2 + 2 + 7 + 8 + 1 + 60 + 478 + 34 + 72 = 666.

It is a super-2 number, since 2×222781604783472² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222781604783473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 6856701147 + ... + 6856733637.

Almost surely, 2^{222781604783472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222781604783472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397763460247296).

222781604783472 is an abundant number, since it is smaller than the sum of its proper divisors (572745315711120).

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

222781604783472 is an equidigital number, since it uses as much as digits as its factorization.

222781604783472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32611 (or 32577 counting only the distinct ones).

The product of its (nonzero) digits is 101154816, while the sum is 63.

The spelling of 222781604783472 in words is "two hundred twenty-two trillion, seven hundred eighty-one billion, six hundred four million, seven hundred eighty-three thousand, four hundred seventy-two".