1200112002001 has 32 divisors (see below), whose sum is σ = 1402028974080. Its totient is φ = 1015787332800.

The previous prime is 1200112001969. The next prime is 1200112002029. The reversal of 1200112002001 is 1002002110021.

It is not a de Polignac number, because 1200112002001 - 2⁵ = 1200112001969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200112002071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3132171 + ... + 3494383.

It is an arithmetic number, because the mean of its divisors is an integer number (43813405440).

Almost surely, 2^{1200112002001} is an apocalyptic number.

1200112002001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200112002001 is a deficient number, since it is larger than the sum of its proper divisors (201916972079).

1200112002001 is a wasteful number, since it uses less digits than its factorization.

1200112002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362517.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200112002001 its reverse (1002002110021), we get a palindrome (2202114112022).

The spelling of 1200112002001 in words is "one trillion, two hundred billion, one hundred twelve million, two thousand, one".