2212057161 has 16 divisors (see below), whose sum is σ = 3310910400. Its totient is φ = 1459499904.

The previous prime is 2212057139. The next prime is 2212057201. The reversal of 2212057161 is 1617502122.

2212057161 is a `hidden beast` number, since 22 + 12 + 0 + 571 + 61 = 666.

It is not a de Polignac number, because 2212057161 - 2⁷ = 2212057033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2212058161) 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 in 15 ways as a sum of consecutive naturals, for example, 419691 + ... + 424928.

It is an arithmetic number, because the mean of its divisors is an integer number (206931900).

Almost surely, 2^2212057161 is an apocalyptic number.

It is an amenable number.

2212057161 is a deficient number, since it is larger than the sum of its proper divisors (1098853239).

2212057161 is an equidigital number, since it uses as much as digits as its factorization.

2212057161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844725 (or 844719 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 2212057161 is about 47032.5117445369. The cubic root of 2212057161 is about 1302.9630953141.

Adding to 2212057161 its reverse (1617502122), we get a palindrome (3829559283).

The spelling of 2212057161 in words is "two billion, two hundred twelve million, fifty-seven thousand, one hundred sixty-one".