20808222082 has 4 divisors (see below), whose sum is σ = 31212333126. Its totient is φ = 10404111040.

The previous prime is 20808222073. The next prime is 20808222089. The reversal of 20808222082 is 28022280802.

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., 16783461601 + 4024760481 = 129551^2 + 63441^2 .

It is not an unprimeable number, because it can be changed into a prime (20808222089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202055519 + ... + 5202055522.

Almost surely, 2^20808222082 is an apocalyptic number.

20808222082 is a deficient number, since it is larger than the sum of its proper divisors (10404111044).

20808222082 is a wasteful number, since it uses less digits than its factorization.

20808222082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10404111043.

The product of its (nonzero) digits is 16384, while the sum is 34.

The spelling of 20808222082 in words is "twenty billion, eight hundred eight million, two hundred twenty-two thousand, eighty-two".