2112101200072 has 32 divisors (see below), whose sum is σ = 4002806707200. Its totient is φ = 1044695821824.

The previous prime is 2112101200039. The next prime is 2112101200073. The reversal of 2112101200072 is 2700021012112.

It is not an unprimeable number, because it can be changed into a prime (2112101200073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129653 + ... + 2345275.

It is an arithmetic number, because the mean of its divisors is an integer number (125087709600).

Almost surely, 2^{2112101200072} is an apocalyptic number.

It is an amenable number.

2112101200072 is a deficient number, since it is larger than the sum of its proper divisors (1890705507128).

2112101200072 is a wasteful number, since it uses less digits than its factorization.

2112101200072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217965 (or 1217961 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 2112101200072 its reverse (2700021012112), we get a palindrome (4812122212184).

The spelling of 2112101200072 in words is "two trillion, one hundred twelve billion, one hundred one million, two hundred thousand, seventy-two".