1213013322 has 48 divisors (see below), whose sum is σ = 2734497792. Its totient is φ = 388190880.

The previous prime is 1213013309. The next prime is 1213013327. The reversal of 1213013322 is 2233103121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1213013295 and 1213013304.

It is not an unprimeable number, because it can be changed into a prime (1213013327) 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, 62308 + ... + 79424.

It is an arithmetic number, because the mean of its divisors is an integer number (56968704).

Almost surely, 2^1213013322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213013322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367248896).

1213013322 is an abundant number, since it is smaller than the sum of its proper divisors (1521484470).

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

1213013322 is a wasteful number, since it uses less digits than its factorization.

1213013322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17283 (or 17280 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1213013322 is about 34828.3407873530. The cubic root of 1213013322 is about 1066.4860772183.

Adding to 1213013322 its reverse (2233103121), we get a palindrome (3446116443).

It can be divided in two parts, 12130 and 13322, that added together give a palindrome (25452).

The spelling of 1213013322 in words is "one billion, two hundred thirteen million, thirteen thousand, three hundred twenty-two".