1101216229 has 2 divisors, whose sum is σ = 1101216230. Its totient is φ = 1101216228.

The previous prime is 1101216223. The next prime is 1101216247. The reversal of 1101216229 is 9226121011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 941876100 + 159340129 = 30690^2 + 12623^2 .

It is an emirp because it is prime and its reverse (9226121011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101216229 - 2¹⁷ = 1101085157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101216223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550608114 + 550608115.

It is an arithmetic number, because the mean of its divisors is an integer number (550608115).

Almost surely, 2^1101216229 is an apocalyptic number.

It is an amenable number.

1101216229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101216229 is an equidigital number, since it uses as much as digits as its factorization.

1101216229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1101216229 is about 33184.5781802331. The cubic root of 1101216229 is about 1032.6604265414.

The spelling of 1101216229 in words is "one billion, one hundred one million, two hundred sixteen thousand, two hundred twenty-nine".