222120795078 has 384 divisors, whose sum is σ = 667525447680. Its totient is φ = 53701522560.

The previous prime is 222120794999. The next prime is 222120795107. The reversal of 222120795078 is 870597021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 26044851 + ... + 26053377.

It is an arithmetic number, because the mean of its divisors is an integer number (1738347520).

Almost surely, 2^222120795078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222120795078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333762723840).

222120795078 is an abundant number, since it is smaller than the sum of its proper divisors (445404652602).

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

222120795078 is a wasteful number, since it uses less digits than its factorization.

222120795078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8614 (or 8602 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 222120795078 in words is "two hundred twenty-two billion, one hundred twenty million, seven hundred ninety-five thousand, seventy-eight".