2223221501 has 2 divisors, whose sum is σ = 2223221502. Its totient is φ = 2223221500.

The previous prime is 2223221491. The next prime is 2223221503. The reversal of 2223221501 is 1051223222.

2223221501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2213796601 + 9424900 = 47051^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223221501 - 2⁶ = 2223221437 is a prime.

Together with 2223221503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223221503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111610750 + 1111610751.

It is an arithmetic number, because the mean of its divisors is an integer number (1111610751).

Almost surely, 2^2223221501 is an apocalyptic number.

It is an amenable number.

2223221501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223221501 is an equidigital number, since it uses as much as digits as its factorization.

2223221501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2223221501 is about 47151.0498398498. The cubic root of 2223221501 is about 1305.1514532854.

Adding to 2223221501 its reverse (1051223222), we get a palindrome (3274444723).

The spelling of 2223221501 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, five hundred one".