222658226028 has 288 divisors, whose sum is σ = 697232600064. Its totient is φ = 60748351488.

The previous prime is 222658225957. The next prime is 222658226059. The reversal of 222658226028 is 820622856222.

222658226028 is a `hidden beast` number, since 2 + 2 + 2 + 6 + 582 + 2 + 60 + 2 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171671076 + ... + 171672372.

It is an arithmetic number, because the mean of its divisors is an integer number (2420946528).

Almost surely, 2^222658226028 is an apocalyptic number.

222658226028 is a gapful number since it is divisible by the number (28) 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 222658226028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348616300032).

222658226028 is an abundant number, since it is smaller than the sum of its proper divisors (474574374036).

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

222658226028 is a wasteful number, since it uses less digits than its factorization.

222658226028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 222658226028 in words is "two hundred twenty-two billion, six hundred fifty-eight million, two hundred twenty-six thousand, twenty-eight".