27212345522 has 4 divisors (see below), whose sum is σ = 40818518286. Its totient is φ = 13606172760.

The previous prime is 27212345497. The next prime is 27212345527. The reversal of 27212345522 is 22554321272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24514478041 + 2697867481 = 156571^2 + 51941^2 .

It is not an unprimeable number, because it can be changed into a prime (27212345527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6803086379 + ... + 6803086382.

Almost surely, 2^27212345522 is an apocalyptic number.

27212345522 is a deficient number, since it is larger than the sum of its proper divisors (13606172764).

27212345522 is a wasteful number, since it uses less digits than its factorization.

27212345522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13606172763.

The product of its digits is 67200, while the sum is 35.

Adding to 27212345522 its reverse (22554321272), we get a palindrome (49766666794).

The spelling of 27212345522 in words is "twenty-seven billion, two hundred twelve million, three hundred forty-five thousand, five hundred twenty-two".