20013212012 has 12 divisors (see below), whose sum is σ = 36866443320. Its totient is φ = 9479942496.

The previous prime is 20013211891. The next prime is 20013212027. The reversal of 20013212012 is 21021231002.

It is a happy number.

It is a super-2 number, since 2×20013212012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131665793 + ... + 131665944.

It is an arithmetic number, because the mean of its divisors is an integer number (3072203610).

Almost surely, 2^20013212012 is an apocalyptic number.

It is an amenable number.

20013212012 is a deficient number, since it is larger than the sum of its proper divisors (16853231308).

20013212012 is a wasteful number, since it uses less digits than its factorization.

20013212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263331760 (or 263331758 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20013212012 its reverse (21021231002), we get a palindrome (41034443014).

The spelling of 20013212012 in words is "twenty billion, thirteen million, two hundred twelve thousand, twelve".