1200110221000 has 128 divisors (see below), whose sum is σ = 2887394065920. Its totient is φ = 466603200000.

The previous prime is 1200110220973. The next prime is 1200110221007. The reversal of 1200110221000 is 1220110021.

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

It is not an unprimeable number, because it can be changed into a prime (1200110221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11056995 + ... + 11165005.

It is an arithmetic number, because the mean of its divisors is an integer number (22557766140).

Almost surely, 2^{1200110221000} is an apocalyptic number.

1200110221000 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 1200110221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443697032960).

1200110221000 is an abundant number, since it is smaller than the sum of its proper divisors (1687283844920).

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

1200110221000 is a wasteful number, since it uses less digits than its factorization.

1200110221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108344 (or 108330 counting only the distinct ones).

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

Adding to 1200110221000 its reverse (1220110021), we get a palindrome (1201330331021).

The spelling of 1200110221000 in words is "one trillion, two hundred billion, one hundred ten million, two hundred twenty-one thousand".