222212212000 has 48 divisors (see below), whose sum is σ = 545975414712. Its totient is φ = 88884883200.

The previous prime is 222212211997. The next prime is 222212212007. The reversal of 222212212000 is 212212222.

It can be written as a sum of positive squares in 4 ways, for example, as 123934977936 + 98277234064 = 352044^2 + 313492^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (222212212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27772527 + ... + 27780526.

Almost surely, 2^222212212000 is an apocalyptic number.

222212212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212212000 is an abundant number, since it is smaller than the sum of its proper divisors (323763202712).

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

222212212000 is an equidigital number, since it uses as much as digits as its factorization.

222212212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55553078 (or 55553060 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222212212000 its reverse (212212222), we get a palindrome (222424424222).

The spelling of 222212212000 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand".