1229101097 has 4 divisors (see below), whose sum is σ = 1404686976. Its totient is φ = 1053515220.

The previous prime is 1229101091. The next prime is 1229101109. The reversal of 1229101097 is 7901019221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1229101097 - 2¹⁰ = 1229100073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1229101091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87792929 + ... + 87792942.

It is an arithmetic number, because the mean of its divisors is an integer number (351171744).

Almost surely, 2^1229101097 is an apocalyptic number.

It is an amenable number.

1229101097 is a deficient number, since it is larger than the sum of its proper divisors (175585879).

1229101097 is an equidigital number, since it uses as much as digits as its factorization.

1229101097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175585878.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 1229101097 is about 35058.5381469336. The cubic root of 1229101097 is about 1071.1801974717.

The spelling of 1229101097 in words is "one billion, two hundred twenty-nine million, one hundred one thousand, ninety-seven".