2201216923 has 2 divisors, whose sum is σ = 2201216924. Its totient is φ = 2201216922.

The previous prime is 2201216911. The next prime is 2201216993. The reversal of 2201216923 is 3296121022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201216923 - 2⁵ = 2201216891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201216891 and 2201216900.

It is not a weakly prime, because it can be changed into another prime (2201216993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100608461 + 1100608462.

It is an arithmetic number, because the mean of its divisors is an integer number (1100608462).

Almost surely, 2^2201216923 is an apocalyptic number.

2201216923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201216923 is an equidigital number, since it uses as much as digits as its factorization.

2201216923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2201216923 is about 46917.1282475814. The cubic root of 2201216923 is about 1300.8312086559.

Adding to 2201216923 its reverse (3296121022), we get a palindrome (5497337945).

The spelling of 2201216923 in words is "two billion, two hundred one million, two hundred sixteen thousand, nine hundred twenty-three".