1122445000000 has 224 divisors, whose sum is σ = 2880560985120. Its totient is φ = 433440000000.

The previous prime is 1122444999979. The next prime is 1122445000013. The reversal of 1122445000000 is 5442211.

It can be written as a sum of positive squares in 16 ways, for example, as 292932077824 + 829512922176 = 541232^2 + 910776^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144996130 + ... + 145003870.

It is an arithmetic number, because the mean of its divisors is an integer number (12859647255).

Almost surely, 2^{1122445000000} is an apocalyptic number.

1122445000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122445000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440280492560).

1122445000000 is an abundant number, since it is smaller than the sum of its proper divisors (1758115985120).

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

1122445000000 is an frugal number, since it uses more digits than its factorization.

1122445000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The spelling of 1122445000000 in words is "one trillion, one hundred twenty-two billion, four hundred forty-five million", and thus it is an aban number.