2152222177 has 8 divisors (see below), whose sum is σ = 2475972992. Its totient is φ = 1832544000.

The previous prime is 2152222159. The next prime is 2152222181. The reversal of 2152222177 is 7712222512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2152222177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152222277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017024 + ... + 1019137.

It is an arithmetic number, because the mean of its divisors is an integer number (309496624).

Almost surely, 2^2152222177 is an apocalyptic number.

It is an amenable number.

2152222177 is a deficient number, since it is larger than the sum of its proper divisors (323750815).

2152222177 is a wasteful number, since it uses less digits than its factorization.

2152222177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036319.

The product of its digits is 7840, while the sum is 31.

The square root of 2152222177 is about 46392.0486398262. The cubic root of 2152222177 is about 1291.1073913428.

Adding to 2152222177 its reverse (7712222512), we get a palindrome (9864444689).

The spelling of 2152222177 in words is "two billion, one hundred fifty-two million, two hundred twenty-two thousand, one hundred seventy-seven".