2112114155201 has 4 divisors (see below), whose sum is σ = 2117278248900. Its totient is φ = 2106950061504.

The previous prime is 2112114155191. The next prime is 2112114155231. The reversal of 2112114155201 is 1025514112112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1765456977025 + 346657178176 = 1328705^2 + 588776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112114155201 - 2²² = 2112109960897 is a prime.

It is a super-2 number, since 2×2112114155201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112114155231) 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, 2582046236 + ... + 2582047053.

It is an arithmetic number, because the mean of its divisors is an integer number (529319562225).

Almost surely, 2^{2112114155201} is an apocalyptic number.

It is an amenable number.

2112114155201 is a deficient number, since it is larger than the sum of its proper divisors (5164093699).

2112114155201 is an equidigital number, since it uses as much as digits as its factorization.

2112114155201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164093698.

The product of its (nonzero) digits is 800, while the sum is 26.

Adding to 2112114155201 its reverse (1025514112112), we get a palindrome (3137628267313).

The spelling of 2112114155201 in words is "two trillion, one hundred twelve billion, one hundred fourteen million, one hundred fifty-five thousand, two hundred one".