1099224251 has 2 divisors, whose sum is σ = 1099224252. Its totient is φ = 1099224250.

The previous prime is 1099224229. The next prime is 1099224253. The reversal of 1099224251 is 1524229901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099224251 - 2¹⁸ = 1098962107 is a prime.

It is a super-2 number, since 2×1099224251² = 2416587907973022002, which contains 22 as substring.

Together with 1099224253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1099224253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549612125 + 549612126.

It is an arithmetic number, because the mean of its divisors is an integer number (549612126).

Almost surely, 2^1099224251 is an apocalyptic number.

1099224251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099224251 is an equidigital number, since it uses as much as digits as its factorization.

1099224251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1099224251 is about 33154.5509847442. The cubic root of 1099224251 is about 1032.0373946724.

The spelling of 1099224251 in words is "one billion, ninety-nine million, two hundred twenty-four thousand, two hundred fifty-one".