1213011322 has 16 divisors (see below), whose sum is σ = 1871659944. Its totient is φ = 589248000.

The previous prime is 1213011311. The next prime is 1213011323. The reversal of 1213011322 is 2231103121.

It can be written as a sum of positive squares in 4 ways, for example, as 532271041 + 680740281 = 23071^2 + 26091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1213011296 and 1213011305.

It is not an unprimeable number, because it can be changed into a prime (1213011323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10929 + ... + 50452.

Almost surely, 2^1213011322 is an apocalyptic number.

1213011322 is a deficient number, since it is larger than the sum of its proper divisors (658648622).

1213011322 is a wasteful number, since it uses less digits than its factorization.

1213011322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61665.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1213011322 is about 34828.3120750920. The cubic root of 1213011322 is about 1066.4854910820.

Adding to 1213011322 its reverse (2231103121), we get a palindrome (3444114443).

The spelling of 1213011322 in words is "one billion, two hundred thirteen million, eleven thousand, three hundred twenty-two".