112101220001 has 6 divisors (see below), whose sum is σ = 117187098210. Its totient is φ = 107227253408.

The previous prime is 112101219973. The next prime is 112101220003. The reversal of 112101220001 is 100022101211.

It can be written as a sum of positive squares in only one way, i.e., 87553851025 + 24547368976 = 295895^2 + 156676^2 .

It is a de Polignac number, because none of the positive numbers 2^k-112101220001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112101220003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105955256 + ... + 105956313.

It is an arithmetic number, because the mean of its divisors is an integer number (19531183035).

Almost surely, 2^112101220001 is an apocalyptic number.

It is an amenable number.

112101220001 is a deficient number, since it is larger than the sum of its proper divisors (5085878209).

112101220001 is an equidigital number, since it uses as much as digits as its factorization.

112101220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211911615 (or 211911592 counting only the distinct ones).

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

Adding to 112101220001 its reverse (100022101211), we get a palindrome (212123321212).

The spelling of 112101220001 in words is "one hundred twelve billion, one hundred one million, two hundred twenty thousand, one".