2164222224612 has 72 divisors (see below), whose sum is σ = 6264481204800. Its totient is φ = 617134339008.

The previous prime is 2164222224601. The next prime is 2164222224613.

2164222224612 is a `hidden beast` number, since 2 + 1 + 6 + 422 + 2 + 224 + 6 + 1 + 2 = 666.

2164222224612 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2164222224613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8308062 + ... + 8564597.

It is an arithmetic number, because the mean of its divisors is an integer number (87006683400).

Almost surely, 2^{2164222224612} is an apocalyptic number.

It is an amenable number.

2164222224612 is an abundant number, since it is smaller than the sum of its proper divisors (4100258980188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2164222224612 is a wasteful number, since it uses less digits than its factorization.

2164222224612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16873185 (or 16873180 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The spelling of 2164222224612 in words is "two trillion, one hundred sixty-four billion, two hundred twenty-two million, two hundred twenty-four thousand, six hundred twelve".