2110121122061 has 2 divisors, whose sum is σ = 2110121122062. Its totient is φ = 2110121122060.

The previous prime is 2110121122027. The next prime is 2110121122069. The reversal of 2110121122061 is 1602211210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1133224120900 + 976897001161 = 1064530^2 + 988381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110121122061 is a prime.

It is a super-2 number, since 2×2110121122061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110121122069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055060561030 + 1055060561031.

It is an arithmetic number, because the mean of its divisors is an integer number (1055060561031).

Almost surely, 2^{2110121122061} is an apocalyptic number.

It is an amenable number.

2110121122061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110121122061 is an equidigital number, since it uses as much as digits as its factorization.

2110121122061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 2110121122061 its reverse (1602211210112), we get a palindrome (3712332332173).

The spelling of 2110121122061 in words is "two trillion, one hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, sixty-one".