1200001120111 has 8 divisors (see below), whose sum is σ = 1270650214944. Its totient is φ = 1129358780160.

The previous prime is 1200001120103. The next prime is 1200001120121. The reversal of 1200001120111 is 1110211000021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200001120111 - 2³ = 1200001120103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200001120121) 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, 1320670 + ... + 2035723.

It is an arithmetic number, because the mean of its divisors is an integer number (158831276868).

Almost surely, 2^{1200001120111} is an apocalyptic number.

1200001120111 is a deficient number, since it is larger than the sum of its proper divisors (70649094833).

1200001120111 is a wasteful number, since it uses less digits than its factorization.

1200001120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377441.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1200001120111 its reverse (1110211000021), we get a palindrome (2310212120132).

The spelling of 1200001120111 in words is "one trillion, two hundred billion, one million, one hundred twenty thousand, one hundred eleven".