20210221000212 has 12 divisors (see below), whose sum is σ = 47157182333856. Its totient is φ = 6736740333400.

The previous prime is 20210221000201. The next prime is 20210221000253. The reversal of 20210221000212 is 21200012201202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20210221000191 and 20210221000200.

It is a congruent number.

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, 842092541664 + ... + 842092541687.

It is an arithmetic number, because the mean of its divisors is an integer number (3929765194488).

Almost surely, 2^{20210221000212} is an apocalyptic number.

It is an amenable number.

20210221000212 is an abundant number, since it is smaller than the sum of its proper divisors (26946961333644).

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

20210221000212 is a wasteful number, since it uses less digits than its factorization.

20210221000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684185083358 (or 1684185083356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20210221000212 its reverse (21200012201202), we get a palindrome (41410233201414).

The spelling of 20210221000212 in words is "twenty trillion, two hundred ten billion, two hundred twenty-one million, two hundred twelve", and thus it is an aban number.