222055236 has 96 divisors (see below), whose sum is σ = 626102400. Its totient is φ = 67651200.

The previous prime is 222055199. The next prime is 222055237. The reversal of 222055236 is 632550222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (222055237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152311 + ... + 153761.

It is an arithmetic number, because the mean of its divisors is an integer number (6521900).

Almost surely, 2^222055236 is an apocalyptic number.

222055236 is a gapful number since it is divisible by the number (26) 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 222055236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313051200).

222055236 is an abundant number, since it is smaller than the sum of its proper divisors (404047164).

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

222055236 is a wasteful number, since it uses less digits than its factorization.

222055236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 222055236 is about 14901.5179092601. The cubic root of 222055236 is about 605.5551092080. Note that the first 3 decimals are identical.

The spelling of 222055236 in words is "two hundred twenty-two million, fifty-five thousand, two hundred thirty-six".