2212511262165 has 24 divisors (see below), whose sum is σ = 3838710670080. Its totient is φ = 1178870268384.

The previous prime is 2212511262121. The next prime is 2212511262217. The reversal of 2212511262165 is 5612621152122.

2212511262165 is a `hidden beast` number, since 2 + 2 + 1 + 25 + 1 + 1 + 2 + 621 + 6 + 5 = 666.

It is not a de Polignac number, because 2212511262165 - 2⁷ = 2212511262037 is a prime.

It is a super-2 number, since 2×2212511262165² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23613937 + ... + 23707446.

It is an arithmetic number, because the mean of its divisors is an integer number (159946277920).

Almost surely, 2^{2212511262165} is an apocalyptic number.

It is an amenable number.

2212511262165 is a deficient number, since it is larger than the sum of its proper divisors (1626199407915).

2212511262165 is a wasteful number, since it uses less digits than its factorization.

2212511262165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47322433 (or 47322430 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 2212511262165 in words is "two trillion, two hundred twelve billion, five hundred eleven million, two hundred sixty-two thousand, one hundred sixty-five".