222988734648 has 576 divisors, whose sum is σ = 718177824000. Its totient is φ = 63806206464.

The previous prime is 222988734643. The next prime is 222988734649. The reversal of 222988734648 is 846437889222.

222988734648 is a `hidden beast` number, since 2 + 2 + 2 + 98 + 87 + 3 + 464 + 8 = 666.

222988734648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222988734641) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4207334590 + ... + 4207334642.

It is an arithmetic number, because the mean of its divisors is an integer number (1246836500).

Almost surely, 2^222988734648 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 222988734648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359088912000).

222988734648 is an abundant number, since it is smaller than the sum of its proper divisors (495189089352).

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

222988734648 is a wasteful number, since it uses less digits than its factorization.

222988734648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 129 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 63.

The spelling of 222988734648 in words is "two hundred twenty-two billion, nine hundred eighty-eight million, seven hundred thirty-four thousand, six hundred forty-eight".