2221299953 has 2 divisors, whose sum is σ = 2221299954. Its totient is φ = 2221299952.

The previous prime is 2221299929. The next prime is 2221299989. The reversal of 2221299953 is 3599921222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2164854784 + 56445169 = 46528^2 + 7513^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221299953 - 2¹⁴ = 2221283569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2221299053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110649976 + 1110649977.

It is an arithmetic number, because the mean of its divisors is an integer number (1110649977).

Almost surely, 2^2221299953 is an apocalyptic number.

It is an amenable number.

2221299953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221299953 is an equidigital number, since it uses as much as digits as its factorization.

2221299953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 2221299953 is about 47130.6689216268. The cubic root of 2221299953 is about 1304.7753273128.

The spelling of 2221299953 in words is "two billion, two hundred twenty-one million, two hundred ninety-nine thousand, nine hundred fifty-three".