2112111061 has 2 divisors, whose sum is σ = 2112111062. Its totient is φ = 2112111060.

The previous prime is 2112111047. The next prime is 2112111073. The reversal of 2112111061 is 1601112112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2048015025 + 64096036 = 45255^2 + 8006^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112111061 - 2²¹ = 2110013909 is a prime.

It is a super-2 number, since 2×2112111061² = 8922026267997091442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112111011) 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 as a sum of consecutive naturals, namely, 1056055530 + 1056055531.

It is an arithmetic number, because the mean of its divisors is an integer number (1056055531).

Almost surely, 2^2112111061 is an apocalyptic number.

It is an amenable number.

2112111061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112111061 is an equidigital number, since it uses as much as digits as its factorization.

2112111061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 2112111061 is about 45957.7094838287. The cubic root of 2112111061 is about 1283.0362209962.

Adding to 2112111061 its reverse (1601112112), we get a palindrome (3713223173).

The spelling of 2112111061 in words is "two billion, one hundred twelve million, one hundred eleven thousand, sixty-one".