2166102722 has 12 divisors (see below), whose sum is σ = 3779628390. Its totient is φ = 928329696.

The previous prime is 2166102721. The next prime is 2166102749. The reversal of 2166102722 is 2272016612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2162343001 + 3759721 = 46501^2 + 1939^2 .

It is not an unprimeable number, because it can be changed into a prime (2166102721) 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 5 ways as a sum of consecutive naturals, for example, 11051447 + ... + 11051642.

Almost surely, 2^2166102722 is an apocalyptic number.

2166102722 is a deficient number, since it is larger than the sum of its proper divisors (1613525668).

2166102722 is a wasteful number, since it uses less digits than its factorization.

2166102722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22103105 (or 22103098 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2166102722 is about 46541.4086808726. The cubic root of 2166102722 is about 1293.8770689229.

The spelling of 2166102722 in words is "two billion, one hundred sixty-six million, one hundred two thousand, seven hundred twenty-two".