20000000212 has 24 divisors (see below), whose sum is σ = 35822600352. Its totient is φ = 9765084000.

The previous prime is 20000000201. The next prime is 20000000219. The reversal of 20000000212 is 21200000002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20000000195 and 20000000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000000219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857262 + ... + 880282.

It is an arithmetic number, because the mean of its divisors is an integer number (1492608348).

Almost surely, 2^20000000212 is an apocalyptic number.

It is an amenable number.

20000000212 is a deficient number, since it is larger than the sum of its proper divisors (15822600140).

20000000212 is a wasteful number, since it uses less digits than its factorization.

20000000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28119 (or 28117 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20000000212 its reverse (21200000002), we get a palindrome (41200000214).

The spelling of 20000000212 in words is "twenty billion, two hundred twelve", and thus it is an aban number.