2221210127 has 2 divisors, whose sum is σ = 2221210128. Its totient is φ = 2221210126.

The previous prime is 2221210091. The next prime is 2221210133. The reversal of 2221210127 is 7210121222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221210127 - 2²⁸ = 1952774671 is a prime.

It is a super-4 number, since 4×2221210127⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a junction number, because it is equal to n+sod(n) for n = 2221210099 and 2221210108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221810127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110605063 + 1110605064.

It is an arithmetic number, because the mean of its divisors is an integer number (1110605064).

Almost surely, 2^2221210127 is an apocalyptic number.

2221210127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221210127 is an equidigital number, since it uses as much as digits as its factorization.

2221210127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2221210127 is about 47129.7159656198. The cubic root of 2221210127 is about 1304.7577393642.

Adding to 2221210127 its reverse (7210121222), we get a palindrome (9431331349).

The spelling of 2221210127 in words is "two billion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty-seven".