1200220110221 has 16 divisors (see below), whose sum is σ = 1338243907968. Its totient is φ = 1067145019200.

The previous prime is 1200220110203. The next prime is 1200220110301. The reversal of 1200220110221 is 1220110220021.

It is a cyclic number.

It is not a de Polignac number, because 1200220110221 - 2¹⁰ = 1200220109197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200220110196 and 1200220110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200220140221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3062345 + ... + 3431966.

It is an arithmetic number, because the mean of its divisors is an integer number (83640244248).

Almost surely, 2^{1200220110221} is an apocalyptic number.

1200220110221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200220110221 is a deficient number, since it is larger than the sum of its proper divisors (138023797747).

1200220110221 is a wasteful number, since it uses less digits than its factorization.

1200220110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494692.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200220110221 its reverse (1220110220021), we get a palindrome (2420330330242).

The spelling of 1200220110221 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred ten thousand, two hundred twenty-one".