1200112020101 has 16 divisors (see below), whose sum is σ = 1258094412288. Its totient is φ = 1143355435200.

The previous prime is 1200112020077. The next prime is 1200112020157. The reversal of 1200112020101 is 1010202110021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200112020101 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 (1200112020901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3188591 + ... + 3545043.

It is an arithmetic number, because the mean of its divisors is an integer number (78630900768).

Almost surely, 2^{1200112020101} is an apocalyptic number.

It is an amenable number.

1200112020101 is a deficient number, since it is larger than the sum of its proper divisors (57982392187).

1200112020101 is a wasteful number, since it uses less digits than its factorization.

1200112020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358172.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200112020101 its reverse (1010202110021), we get a palindrome (2210314130122).

The spelling of 1200112020101 in words is "one trillion, two hundred billion, one hundred twelve million, twenty thousand, one hundred one".