211002061 has 2 divisors, whose sum is σ = 211002062. Its totient is φ = 211002060.

The previous prime is 211002059. The next prime is 211002097. The reversal of 211002061 is 160200112.

211002061 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., 148986436 + 62015625 = 12206^2 + 7875^2 .

It is a cyclic number.

It is not a de Polignac number, because 211002061 - 2¹ = 211002059 is a prime.

Together with 211002059, 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 (211002761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105501030 + 105501031.

It is an arithmetic number, because the mean of its divisors is an integer number (105501031).

Almost surely, 2^211002061 is an apocalyptic number.

It is an amenable number.

211002061 is a deficient number, since it is larger than the sum of its proper divisors (1).

211002061 is an equidigital number, since it uses as much as digits as its factorization.

211002061 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 211002061 is about 14525.9099887064. The cubic root of 211002061 is about 595.3361196705.

Adding to 211002061 its reverse (160200112), we get a palindrome (371202173).

The spelling of 211002061 in words is "two hundred eleven million, two thousand, sixty-one".