20012100212012 has 12 divisors (see below), whose sum is σ = 35021207006016. Its totient is φ = 10006041067440.

The previous prime is 20012100212003. The next prime is 20012100212023. The reversal of 20012100212012 is 21021200121002.

It is a super-2 number, since 2×20012100212012² (a number of 27 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, 6464837 + ... + 9045347.

It is an arithmetic number, because the mean of its divisors is an integer number (2918433917168).

Almost surely, 2^{20012100212012} is an apocalyptic number.

It is an amenable number.

20012100212012 is a deficient number, since it is larger than the sum of its proper divisors (15009106794004).

20012100212012 is a wasteful number, since it uses less digits than its factorization.

20012100212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519288 (or 4519286 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012100212012 its reverse (21021200121002), we get a palindrome (41033300333014).

The spelling of 20012100212012 in words is "twenty trillion, twelve billion, one hundred million, two hundred twelve thousand, twelve".