201001221212 has 24 divisors (see below), whose sum is σ = 385657910400. Its totient is φ = 90905070960.

The previous prime is 201001221193. The next prime is 201001221319. The reversal of 201001221212 is 212122100102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11469158 + ... + 11486669.

It is an arithmetic number, because the mean of its divisors is an integer number (16069079600).

Almost surely, 2^201001221212 is an apocalyptic number.

201001221212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201001221212 is a deficient number, since it is larger than the sum of its proper divisors (184656689188).

201001221212 is a wasteful number, since it uses less digits than its factorization.

201001221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956041 (or 22956039 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201001221212 its reverse (212122100102), we get a palindrome (413123321314).

The spelling of 201001221212 in words is "two hundred one billion, one million, two hundred twenty-one thousand, two hundred twelve".