1200220011121 has 8 divisors (see below), whose sum is σ = 1209600660800. Its totient is φ = 1190850018480.

The previous prime is 1200220011119. The next prime is 1200220011131. The reversal of 1200220011121 is 1211100220021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200220011121 - 2¹ = 1200220011119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200220011131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2438061 + ... + 2888698.

It is an arithmetic number, because the mean of its divisors is an integer number (151200082600).

Almost surely, 2^{1200220011121} is an apocalyptic number.

It is an amenable number.

1200220011121 is a deficient number, since it is larger than the sum of its proper divisors (9380649679).

1200220011121 is a wasteful number, since it uses less digits than its factorization.

1200220011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328519.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200220011121 its reverse (1211100220021), we get a palindrome (2411320231142).

The spelling of 1200220011121 in words is "one trillion, two hundred billion, two hundred twenty million, eleven thousand, one hundred twenty-one".