2112201101011 has 4 divisors (see below), whose sum is σ = 2112642711712. Its totient is φ = 2111759490312.

The previous prime is 2112201100973. The next prime is 2112201101069. The reversal of 2112201101011 is 1101011022112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2112201101011 - 2⁷ = 2112201100883 is a prime.

It is a super-2 number, since 2×2112201101011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112201100982 and 2112201101000.

It is not an unprimeable number, because it can be changed into a prime (2112201101711) 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, 220798176 + ... + 220807741.

It is an arithmetic number, because the mean of its divisors is an integer number (528160677928).

Almost surely, 2^{2112201101011} is an apocalyptic number.

2112201101011 is a deficient number, since it is larger than the sum of its proper divisors (441610701).

2112201101011 is an equidigital number, since it uses as much as digits as its factorization.

2112201101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441610700.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2112201101011 its reverse (1101011022112), we get a palindrome (3213212123123).

The spelling of 2112201101011 in words is "two trillion, one hundred twelve billion, two hundred one million, one hundred one thousand, eleven".