1011122200000 has 336 divisors, whose sum is σ = 2750953490208. Its totient is φ = 365657600000.

The previous prime is 1011122199947. The next prime is 1011122200001. The reversal of 1011122200000 is 22211101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 1011122200000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011122200001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433398834 + ... + 433401166.

It is an arithmetic number, because the mean of its divisors is an integer number (8187361578).

Almost surely, 2^{1011122200000} is an apocalyptic number.

1011122200000 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 1011122200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375476745104).

1011122200000 is an abundant number, since it is smaller than the sum of its proper divisors (1739831290208).

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

1011122200000 is an equidigital number, since it uses as much as digits as its factorization.

1011122200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1011122200000 its reverse (22211101), we get a palindrome (1011144411101).

The spelling of 1011122200000 in words is "one trillion, eleven billion, one hundred twenty-two million, two hundred thousand".