1200112120101 has 4 divisors (see below), whose sum is σ = 1600149493472. Its totient is φ = 800074746732.

The previous prime is 1200112120099. The next prime is 1200112120147. The reversal of 1200112120101 is 1010212110021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1200112120101 - 2¹ = 1200112120099 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 (1200112120001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200018686681 + ... + 200018686686.

It is an arithmetic number, because the mean of its divisors is an integer number (400037373368).

Almost surely, 2^{1200112120101} is an apocalyptic number.

It is an amenable number.

1200112120101 is a deficient number, since it is larger than the sum of its proper divisors (400037373371).

1200112120101 is an equidigital number, since it uses as much as digits as its factorization.

1200112120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400037373370.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1200112120101 its reverse (1010212110021), we get a palindrome (2210324230122).

The spelling of 1200112120101 in words is "one trillion, two hundred billion, one hundred twelve million, one hundred twenty thousand, one hundred one".