201030021212 has 24 divisors (see below), whose sum is σ = 354989013456. Its totient is φ = 99608375808.

The previous prime is 201030021193. The next prime is 201030021223. The reversal of 201030021212 is 212120030102.

It is a happy number.

201030021212 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260693 + ... + 685580.

It is an arithmetic number, because the mean of its divisors is an integer number (14791208894).

Almost surely, 2^201030021212 is an apocalyptic number.

It is an amenable number.

201030021212 is a deficient number, since it is larger than the sum of its proper divisors (153958992244).

201030021212 is a wasteful number, since it uses less digits than its factorization.

201030021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946757 (or 946755 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201030021212 its reverse (212120030102), we get a palindrome (413150051314).

The spelling of 201030021212 in words is "two hundred one billion, thirty million, twenty-one thousand, two hundred twelve".