1122120000 has 280 divisors, whose sum is σ = 4126179200. Its totient is φ = 298944000.

The previous prime is 1122119987. The next prime is 1122120049. The reversal of 1122120000 is 212211.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1079481 + ... + 1080519.

Almost surely, 2^1122120000 is an apocalyptic number.

1122120000 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 1122120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063089600).

1122120000 is an abundant number, since it is smaller than the sum of its proper divisors (3004059200).

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

1122120000 is an equidigital number, since it uses as much as digits as its factorization.

1122120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1122120000 is about 33498.0596452989. The cubic root of 1122120000 is about 1039.1536506804.

Adding to 1122120000 its reverse (212211), we get a palindrome (1122332211).

The spelling of 1122120000 in words is "one billion, one hundred twenty-two million, one hundred twenty thousand".