1220111221022 has 8 divisors (see below), whose sum is σ = 1830189730896. Its totient is φ = 610047977392.

The previous prime is 1220111220989. The next prime is 1220111221031. The reversal of 1220111221022 is 2201221110221.

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

It is a super-3 number, since 3×1220111221022³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3614618 + ... + 3937725.

It is an arithmetic number, because the mean of its divisors is an integer number (228773716362).

Almost surely, 2^{1220111221022} is an apocalyptic number.

1220111221022 is a deficient number, since it is larger than the sum of its proper divisors (610078509874).

1220111221022 is an equidigital number, since it uses as much as digits as its factorization.

1220111221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7633122.

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

Adding to 1220111221022 its reverse (2201221110221), we get a palindrome (3421332331243).

The spelling of 1220111221022 in words is "one trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, twenty-two".