8212291412 has 12 divisors (see below), whose sum is σ = 15477010836. Its totient is φ = 3790288320.

The previous prime is 8212291363. The next prime is 8212291441. The reversal of 8212291412 is 2141922128.

It can be written as a sum of positive squares in 2 ways, for example, as 3267951556 + 4944339856 = 57166^2 + 70316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78964289 + ... + 78964392.

It is an arithmetic number, because the mean of its divisors is an integer number (1289750903).

Almost surely, 2^8212291412 is an apocalyptic number.

It is an amenable number.

8212291412 is a deficient number, since it is larger than the sum of its proper divisors (7264719424).

8212291412 is a wasteful number, since it uses less digits than its factorization.

8212291412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157928698 (or 157928696 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 8212291412 is about 90621.6939369376. The cubic root of 8212291412 is about 2017.5367330639.

The spelling of 8212291412 in words is "eight billion, two hundred twelve million, two hundred ninety-one thousand, four hundred twelve".