2212877665 has 8 divisors (see below), whose sum is σ = 2666473128. Its totient is φ = 1762955520.

The previous prime is 2212877651. The next prime is 2212877687. The reversal of 2212877665 is 5667782122.

2212877665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 662959504 + 1549918161 = 25748^2 + 39369^2 .

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

It is not a de Polignac number, because 2212877665 - 2¹¹ = 2212875617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917002 + ... + 919411.

It is an arithmetic number, because the mean of its divisors is an integer number (333309141).

Almost surely, 2^2212877665 is an apocalyptic number.

It is an amenable number.

2212877665 is a deficient number, since it is larger than the sum of its proper divisors (453595463).

2212877665 is a wasteful number, since it uses less digits than its factorization.

2212877665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836659.

The product of its digits is 564480, while the sum is 46.

The square root of 2212877665 is about 47041.2336679216. The cubic root of 2212877665 is about 1303.1241752799.

The spelling of 2212877665 in words is "two billion, two hundred twelve million, eight hundred seventy-seven thousand, six hundred sixty-five".