1220011112222 has 8 divisors (see below), whose sum is σ = 2091447620976. Its totient is φ = 522861905232.

The previous prime is 1220011112209. The next prime is 1220011112237. The reversal of 1220011112222 is 2222111100221.

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

It is a super-2 number, since 2×1220011112222² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220011112222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43571825423 + ... + 43571825450.

It is an arithmetic number, because the mean of its divisors is an integer number (261430952622).

Almost surely, 2^{1220011112222} is an apocalyptic number.

1220011112222 is a deficient number, since it is larger than the sum of its proper divisors (871436508754).

1220011112222 is an equidigital number, since it uses as much as digits as its factorization.

1220011112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87143650882.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220011112222 its reverse (2222111100221), we get a palindrome (3442122212443).

The spelling of 1220011112222 in words is "one trillion, two hundred twenty billion, eleven million, one hundred twelve thousand, two hundred twenty-two".