20110001212 has 18 divisors (see below), whose sum is σ = 40938217152. Its totient is φ = 8618571864.

The previous prime is 20110001209. The next prime is 20110001213. The reversal of 20110001212 is 21210001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110001213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51300828 + ... + 51301219.

Almost surely, 2^20110001212 is an apocalyptic number.

It is an amenable number.

20110001212 is an abundant number, since it is smaller than the sum of its proper divisors (20828215940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110001212 is a wasteful number, since it uses less digits than its factorization.

20110001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102602065 (or 102602056 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20110001212 its reverse (21210001102), we get a palindrome (41320002314).

The spelling of 20110001212 in words is "twenty billion, one hundred ten million, one thousand, two hundred twelve".