2210221061 has 2 divisors, whose sum is σ = 2210221062. Its totient is φ = 2210221060.

The previous prime is 2210221033. The next prime is 2210221067. The reversal of 2210221061 is 1601220122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1347330436 + 862890625 = 36706^2 + 29375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210221061 - 2²⁶ = 2143112197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210221067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105110530 + 1105110531.

It is an arithmetic number, because the mean of its divisors is an integer number (1105110531).

Almost surely, 2^2210221061 is an apocalyptic number.

It is an amenable number.

2210221061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210221061 is an equidigital number, since it uses as much as digits as its factorization.

2210221061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2210221061 is about 47012.9882160239. The cubic root of 2210221061 is about 1302.6024908943.

Adding to 2210221061 its reverse (1601220122), we get a palindrome (3811441183).

The spelling of 2210221061 in words is "two billion, two hundred ten million, two hundred twenty-one thousand, sixty-one".