201021000212 has 48 divisors (see below), whose sum is σ = 372170272320. Its totient is φ = 94865971200.

The previous prime is 201021000211. The next prime is 201021000221. The reversal of 201021000212 is 212000120102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201021000193 and 201021000202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021000211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919412 + ... + 1116852.

It is an arithmetic number, because the mean of its divisors is an integer number (7753547340).

Almost surely, 2^201021000212 is an apocalyptic number.

It is an amenable number.

201021000212 is a deficient number, since it is larger than the sum of its proper divisors (171149272108).

201021000212 is a wasteful number, since it uses less digits than its factorization.

201021000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197672 (or 197670 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201021000212 its reverse (212000120102), we get a palindrome (413021120314).

The spelling of 201021000212 in words is "two hundred one billion, twenty-one million, two hundred twelve", and thus it is an aban number.