20322220012 has 6 divisors (see below), whose sum is σ = 35563885028. Its totient is φ = 10161110004.

The previous prime is 20322219997. The next prime is 20322220043. The reversal of 20322220012 is 21002222302.

It is a super-2 number, since 2×20322220012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540277498 + ... + 2540277505.

Almost surely, 2^20322220012 is an apocalyptic number.

It is an amenable number.

20322220012 is a deficient number, since it is larger than the sum of its proper divisors (15241665016).

20322220012 is a wasteful number, since it uses less digits than its factorization.

20322220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080555007 (or 5080555005 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20322220012 its reverse (21002222302), we get a palindrome (41324442314).

The spelling of 20322220012 in words is "twenty billion, three hundred twenty-two million, two hundred twenty thousand, twelve".