2168223522 has 24 divisors (see below), whose sum is σ = 4349915856. Its totient is φ = 720503208.

The previous prime is 2168223521. The next prime is 2168223523. The reversal of 2168223522 is 2253228612.

It is an interprime number because it is at equal distance from previous prime (2168223521) and next prime (2168223523).

It is not an unprimeable number, because it can be changed into a prime (2168223521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806793 + ... + 809475.

It is an arithmetic number, because the mean of its divisors is an integer number (181246494).

Almost surely, 2^2168223522 is an apocalyptic number.

2168223522 is an abundant number, since it is smaller than the sum of its proper divisors (2181692334).

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

2168223522 is an equidigital number, since it uses as much as digits as its factorization.

2168223522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422 (or 3055 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 2168223522 is about 46564.1871184283. The cubic root of 2168223522 is about 1294.2992033231.

The spelling of 2168223522 in words is "two billion, one hundred sixty-eight million, two hundred twenty-three thousand, five hundred twenty-two".