2012101010221 has 2 divisors, whose sum is σ = 2012101010222. Its totient is φ = 2012101010220.

The previous prime is 2012101010189. The next prime is 2012101010267. The reversal of 2012101010221 is 1220101012102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1940309702500 + 71791307721 = 1392950^2 + 267939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012101010221 - 2⁵ = 2012101010189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012101014221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006050505110 + 1006050505111.

It is an arithmetic number, because the mean of its divisors is an integer number (1006050505111).

Almost surely, 2^{2012101010221} is an apocalyptic number.

It is an amenable number.

2012101010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012101010221 is an equidigital number, since it uses as much as digits as its factorization.

2012101010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2012101010221 its reverse (1220101012102), we get a palindrome (3232202022323).

The spelling of 2012101010221 in words is "two trillion, twelve billion, one hundred one million, ten thousand, two hundred twenty-one".