1111220122000 has 40 divisors (see below), whose sum is σ = 2686930259832. Its totient is φ = 444488048000.

The previous prime is 1111220121961. The next prime is 1111220122037. The reversal of 1111220122000 is 2210221111.

It can be written as a sum of positive squares in 4 ways, for example, as 121402071184 + 989818050816 = 348428^2 + 994896^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 277803031 + ... + 277807030.

Almost surely, 2^{1111220122000} is an apocalyptic number.

1111220122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111220122000 is an abundant number, since it is smaller than the sum of its proper divisors (1575710137832).

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

1111220122000 is an equidigital number, since it uses as much as digits as its factorization.

1111220122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555610084 (or 555610068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1111220122000 its reverse (2210221111), we get a palindrome (1113430343111).

The spelling of 1111220122000 in words is "one trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty-two thousand".