20001213412 has 12 divisors (see below), whose sum is σ = 35038177776. Its totient is φ = 9990305480.

The previous prime is 20001213409. The next prime is 20001213413. The reversal of 20001213412 is 21431210002.

It is not an unprimeable number, because it can be changed into a prime (20001213413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570938 + ... + 2578705.

It is an arithmetic number, because the mean of its divisors is an integer number (2919848148).

Almost surely, 2^20001213412 is an apocalyptic number.

It is an amenable number.

20001213412 is a deficient number, since it is larger than the sum of its proper divisors (15036964364).

20001213412 is a wasteful number, since it uses less digits than its factorization.

20001213412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150618 (or 5150616 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20001213412 its reverse (21431210002), we get a palindrome (41432423414).

The spelling of 20001213412 in words is "twenty billion, one million, two hundred thirteen thousand, four hundred twelve".