1099227551 has 2 divisors, whose sum is σ = 1099227552. Its totient is φ = 1099227550.

The previous prime is 1099227509. The next prime is 1099227559. The reversal of 1099227551 is 1557229901.

It is a strong prime.

It is an emirp because it is prime and its reverse (1557229901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1099227551 - 2²⁶ = 1032118687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1099227499 and 1099227508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099227559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549613775 + 549613776.

It is an arithmetic number, because the mean of its divisors is an integer number (549613776).

Almost surely, 2^1099227551 is an apocalyptic number.

1099227551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099227551 is an equidigital number, since it uses as much as digits as its factorization.

1099227551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 1099227551 is about 33154.6007516302. The cubic root of 1099227551 is about 1032.0384274371.

The spelling of 1099227551 in words is "one billion, ninety-nine million, two hundred twenty-seven thousand, five hundred fifty-one".