71212122202 has 8 divisors (see below), whose sum is σ = 115034966676. Its totient is φ = 32867133312.

The previous prime is 71212122197. The next prime is 71212122203. The reversal of 71212122202 is 20222121217.

It can be written as a sum of positive squares in 2 ways, for example, as 54836057241 + 16376064961 = 234171^2 + 127969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (71212122203) 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 3 ways as a sum of consecutive naturals, for example, 1369463863 + ... + 1369463914.

Almost surely, 2^71212122202 is an apocalyptic number.

71212122202 is a deficient number, since it is larger than the sum of its proper divisors (43822844474).

71212122202 is a wasteful number, since it uses less digits than its factorization.

71212122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738927792.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 71212122202 its reverse (20222121217), we get a palindrome (91434243419).

The spelling of 71212122202 in words is "seventy-one billion, two hundred twelve million, one hundred twenty-two thousand, two hundred two".