222220748640 has 384 divisors, whose sum is σ = 798117691392. Its totient is φ = 51446405120.

The previous prime is 222220748639. The next prime is 222220748669. The reversal of 222220748640 is 46847022222.

222220748640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222220748640² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107716249 + ... + 107718311.

It is an arithmetic number, because the mean of its divisors is an integer number (2078431488).

Almost surely, 2^222220748640 is an apocalyptic number.

222220748640 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 222220748640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399058845696).

222220748640 is an abundant number, since it is smaller than the sum of its proper divisors (575896942752).

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

222220748640 is a wasteful number, since it uses less digits than its factorization.

222220748640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 39.

The spelling of 222220748640 in words is "two hundred twenty-two billion, two hundred twenty million, seven hundred forty-eight thousand, six hundred forty".