222000204426 has 256 divisors, whose sum is σ = 604064563200. Its totient is φ = 52523136000.

The previous prime is 222000204421. The next prime is 222000204467. The reversal of 222000204426 is 624402000222.

It is a junction number, because it is equal to n+sod(n) for n = 222000204396 and 222000204405.

It is not an unprimeable number, because it can be changed into a prime (222000204421) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 308762095 + ... + 308762813.

It is an arithmetic number, because the mean of its divisors is an integer number (2359627200).

Almost surely, 2^222000204426 is an apocalyptic number.

222000204426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222000204426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302032281600).

222000204426 is an abundant number, since it is smaller than the sum of its proper divisors (382064358774).

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

222000204426 is a wasteful number, since it uses less digits than its factorization.

222000204426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 222000204426 its reverse (624402000222), we get a palindrome (846402204648).

It can be divided in two parts, 222000 and 204426, that added together give a triangular number (426426 = T₉₂₃).

The spelling of 222000204426 in words is "two hundred twenty-two billion, two hundred four thousand, four hundred twenty-six".