6813221132 has 6 divisors (see below), whose sum is σ = 11923136988. Its totient is φ = 3406610564.

The previous prime is 6813221101. The next prime is 6813221143. The reversal of 6813221132 is 2311223186.

It is a happy number.

It is a super-2 number, since 2×6813221132² = 92839964387062722848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6813221095 and 6813221104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851652638 + ... + 851652645.

It is an arithmetic number, because the mean of its divisors is an integer number (1987189498).

Almost surely, 2^6813221132 is an apocalyptic number.

It is an amenable number.

6813221132 is a deficient number, since it is larger than the sum of its proper divisors (5109915856).

6813221132 is a wasteful number, since it uses less digits than its factorization.

6813221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703305287 (or 1703305285 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 6813221132 is about 82542.2384721907. The cubic root of 6813221132 is about 1895.7635185334.

The spelling of 6813221132 in words is "six billion, eight hundred thirteen million, two hundred twenty-one thousand, one hundred thirty-two".