2112212100041 has 4 divisors (see below), whose sum is σ = 2112247660692. Its totient is φ = 2112176539392.

The previous prime is 2112212099999. The next prime is 2112212100109. The reversal of 2112212100041 is 1400012122112.

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 861919132816 + 1250292967225 = 928396^2 + 1118165^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112212100041 - 2²² = 2112207905737 is a prime.

It is a super-2 number, since 2×2112212100041² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2112212099992 and 2112212100019.

It is not an unprimeable number, because it can be changed into a prime (2112212109041) 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, 17691080 + ... + 17810073.

It is an arithmetic number, because the mean of its divisors is an integer number (528061915173).

Almost surely, 2^{2112212100041} is an apocalyptic number.

It is an amenable number.

2112212100041 is a deficient number, since it is larger than the sum of its proper divisors (35560651).

2112212100041 is an equidigital number, since it uses as much as digits as its factorization.

2112212100041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35560650.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112212100041 its reverse (1400012122112), we get a palindrome (3512224222153).

The spelling of 2112212100041 in words is "two trillion, one hundred twelve billion, two hundred twelve million, one hundred thousand, forty-one".