20002120212 has 12 divisors (see below), whose sum is σ = 46671613856. Its totient is φ = 6667373400.

The previous prime is 20002120141. The next prime is 20002120261. The reversal of 20002120212 is 21202120002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1666843351 = 20002120212 / (2 + 0 + 0 + 0 + 2 + 1 + 2 + 0 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833421664 + ... + 833421687.

Almost surely, 2^20002120212 is an apocalyptic number.

It is an amenable number.

20002120212 is an abundant number, since it is smaller than the sum of its proper divisors (26669493644).

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

20002120212 is a wasteful number, since it uses less digits than its factorization.

20002120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666843358 (or 1666843356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20002120212 its reverse (21202120002), we get a palindrome (41204240214).

It can be divided in two parts, 2000 and 2120212, that added together give a palindrome (2122212).

The spelling of 20002120212 in words is "twenty billion, two million, one hundred twenty thousand, two hundred twelve".