2112111021011 has 8 divisors (see below), whose sum is σ = 2275036836864. Its totient is φ = 1955109780360.

The previous prime is 2112111021001. The next prime is 2112111021023. The reversal of 2112111021011 is 1101201112112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112111021011 - 2¹⁰ = 2112111019987 is a prime.

It is a super-2 number, since 2×2112111021011² (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 (2112111021001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481143061 + ... + 1481144486.

It is an arithmetic number, because the mean of its divisors is an integer number (284379604608).

Almost surely, 2^{2112111021011} is an apocalyptic number.

2112111021011 is a deficient number, since it is larger than the sum of its proper divisors (162925815853).

2112111021011 is a wasteful number, since it uses less digits than its factorization.

2112111021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962287601.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2112111021011 its reverse (1101201112112), we get a palindrome (3213312133123).

The spelling of 2112111021011 in words is "two trillion, one hundred twelve billion, one hundred eleven million, twenty-one thousand, eleven".