20206012 has 6 divisors (see below), whose sum is σ = 35360528. Its totient is φ = 10103004.

The previous prime is 20206009. The next prime is 20206019. The reversal of 20206012 is 21060202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20205983 and 20206001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20206019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525748 + ... + 2525755.

Almost surely, 2^20206012 is an apocalyptic number.

It is an amenable number.

20206012 is a deficient number, since it is larger than the sum of its proper divisors (15154516).

20206012 is a wasteful number, since it uses less digits than its factorization.

20206012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051507 (or 5051505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20206012 is about 4495.1097873133. The cubic root of 20206012 is about 272.3705841160.

Adding to 20206012 its reverse (21060202), we get a palindrome (41266214).

The spelling of 20206012 in words is "twenty million, two hundred six thousand, twelve".