2211551273 has 2 divisors, whose sum is σ = 2211551274. Its totient is φ = 2211551272.

The previous prime is 2211551261. The next prime is 2211551291. The reversal of 2211551273 is 3721551122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2211538729 + 12544 = 47027^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211551273 - 2¹⁴ = 2211534889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211551473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105775636 + 1105775637.

It is an arithmetic number, because the mean of its divisors is an integer number (1105775637).

Almost surely, 2^2211551273 is an apocalyptic number.

It is an amenable number.

2211551273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211551273 is an equidigital number, since it uses as much as digits as its factorization.

2211551273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 2211551273 is about 47027.1333700025. The cubic root of 2211551273 is about 1302.8637603811.

The spelling of 2211551273 in words is "two billion, two hundred eleven million, five hundred fifty-one thousand, two hundred seventy-three".