2212101021061 has 2 divisors, whose sum is σ = 2212101021062. Its totient is φ = 2212101021060.

The previous prime is 2212101021059. The next prime is 2212101021107. The reversal of 2212101021061 is 1601201012122.

2212101021061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183156552900 + 1028944468161 = 1087730^2 + 1014369^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212101021061 - 2¹ = 2212101021059 is a prime.

Together with 2212101021059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212101021461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106050510530 + 1106050510531.

It is an arithmetic number, because the mean of its divisors is an integer number (1106050510531).

Almost surely, 2^{2212101021061} is an apocalyptic number.

It is an amenable number.

2212101021061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212101021061 is an equidigital number, since it uses as much as digits as its factorization.

2212101021061 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 19.

Adding to 2212101021061 its reverse (1601201012122), we get a palindrome (3813302033183).

The spelling of 2212101021061 in words is "two trillion, two hundred twelve billion, one hundred one million, twenty-one thousand, sixty-one".