811213322 has 32 divisors (see below), whose sum is σ = 1296000000. Its totient is φ = 379750896.

The previous prime is 811213253. The next prime is 811213369. The reversal of 811213322 is 223312118.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1625429 + ... + 1625927.

It is an arithmetic number, because the mean of its divisors is an integer number (40500000).

Almost surely, 2^811213322 is an apocalyptic number.

811213322 is a deficient number, since it is larger than the sum of its proper divisors (484786678).

811213322 is a wasteful number, since it uses less digits than its factorization.

811213322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its digits is 576, while the sum is 23.

The square root of 811213322 is about 28481.8068598184. The cubic root of 811213322 is about 932.6349607602.

The spelling of 811213322 in words is "eight hundred eleven million, two hundred thirteen thousand, three hundred twenty-two".