2012100061 has 2 divisors, whose sum is σ = 2012100062. Its totient is φ = 2012100060.

The previous prime is 2012100037. The next prime is 2012100073. The reversal of 2012100061 is 1600012102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1262380900 + 749719161 = 35530^2 + 27381^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012100061 - 2¹¹ = 2012098013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012100091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006050030 + 1006050031.

It is an arithmetic number, because the mean of its divisors is an integer number (1006050031).

Almost surely, 2^2012100061 is an apocalyptic number.

It is an amenable number.

2012100061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012100061 is an equidigital number, since it uses as much as digits as its factorization.

2012100061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2012100061 is about 44856.4383450135. The cubic root of 2012100061 is about 1262.4567965610.

Adding to 2012100061 its reverse (1600012102), we get a palindrome (3612112163).

The spelling of 2012100061 in words is "two billion, twelve million, one hundred thousand, sixty-one".