1229213106 has 48 divisors (see below), whose sum is σ = 2929481568. Its totient is φ = 372481560.

The previous prime is 1229213071. The next prime is 1229213107. The reversal of 1229213106 is 6013129221.

It is a self number, because there is not a number n which added to its sum of digits gives 1229213106.

It is not an unprimeable number, because it can be changed into a prime (1229213107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1696 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (61030866).

Almost surely, 2^1229213106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229213106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464740784).

1229213106 is an abundant number, since it is smaller than the sum of its proper divisors (1700268462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229213106 is a wasteful number, since it uses less digits than its factorization.

1229213106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51348 (or 51323 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1229213106 is about 35060.1355673363. The cubic root of 1229213106 is about 1071.2127356626.

The spelling of 1229213106 in words is "one billion, two hundred twenty-nine million, two hundred thirteen thousand, one hundred six".