2178222023 has 2 divisors, whose sum is σ = 2178222024. Its totient is φ = 2178222022.

The previous prime is 2178222017. The next prime is 2178222031. The reversal of 2178222023 is 3202228712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2178222023 - 2²² = 2174027719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2178222043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089111011 + 1089111012.

It is an arithmetic number, because the mean of its divisors is an integer number (1089111012).

Almost surely, 2^2178222023 is an apocalyptic number.

2178222023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2178222023 is an equidigital number, since it uses as much as digits as its factorization.

2178222023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2178222023 is about 46671.4261941930. The cubic root of 2178222023 is about 1296.2856545230.

The spelling of 2178222023 in words is "two billion, one hundred seventy-eight million, two hundred twenty-two thousand, twenty-three".