1200000202110 has 80 divisors (see below), whose sum is σ = 3228881950800. Its totient is φ = 319780410624.

The previous prime is 1200000202057. The next prime is 1200000202117. The reversal of 1200000202110 is 112020000021.

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

It is a junction number, because it is equal to n+sod(n) for n = 1200000202092 and 1200000202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200000202117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 674086 + ... + 1689494.

It is an arithmetic number, because the mean of its divisors is an integer number (40361024385).

Almost surely, 2^{1200000202110} is an apocalyptic number.

1200000202110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200000202110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1614440975400).

1200000202110 is an abundant number, since it is smaller than the sum of its proper divisors (2028881748690).

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

1200000202110 is a wasteful number, since it uses less digits than its factorization.

1200000202110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016887 (or 1016878 counting only the distinct ones).

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

Adding to 1200000202110 its reverse (112020000021), we get a palindrome (1312020202131).

The spelling of 1200000202110 in words is "one trillion, two hundred billion, two hundred two thousand, one hundred ten".