1101216247 has 2 divisors, whose sum is σ = 1101216248. Its totient is φ = 1101216246.

The previous prime is 1101216229. The next prime is 1101216257. The reversal of 1101216247 is 7426121011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101216247 - 2²³ = 1092827639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101216257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550608123 + 550608124.

It is an arithmetic number, because the mean of its divisors is an integer number (550608124).

Almost surely, 2^1101216247 is an apocalyptic number.

1101216247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101216247 is an equidigital number, since it uses as much as digits as its factorization.

1101216247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1101216247 is about 33184.5784514434. The cubic root of 1101216247 is about 1032.6604321679.

Adding to 1101216247 its reverse (7426121011), we get a palindrome (8527337258).

The spelling of 1101216247 in words is "one billion, one hundred one million, two hundred sixteen thousand, two hundred forty-seven".