11221001222122 has 8 divisors (see below), whose sum is σ = 16861082681700. Its totient is φ = 5600640328224.

The previous prime is 11221001222059. The next prime is 11221001222141. The reversal of 11221001222122 is 22122210012211.

It can be written as a sum of positive squares in 2 ways, for example, as 9803279978361 + 1417721243761 = 3131019^2 + 1190681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11221001222122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4930139997 + ... + 4930142272.

Almost surely, 2^{11221001222122} is an apocalyptic number.

11221001222122 is a deficient number, since it is larger than the sum of its proper divisors (5640081459578).

11221001222122 is an equidigital number, since it uses as much as digits as its factorization.

11221001222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9860282840.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11221001222122 its reverse (22122210012211), we get a palindrome (33343211234333).

The spelling of 11221001222122 in words is "eleven trillion, two hundred twenty-one billion, one million, two hundred twenty-two thousand, one hundred twenty-two".