201000121212 has 96 divisors (see below), whose sum is σ = 539409427200. Its totient is φ = 57612902400.

The previous prime is 201000121207. The next prime is 201000121219. The reversal of 201000121212 is 212121000102.

201000121212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000121219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1545114 + ... + 1670142.

It is an arithmetic number, because the mean of its divisors is an integer number (5618848200).

Almost surely, 2^201000121212 is an apocalyptic number.

201000121212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201000121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269704713600).

201000121212 is an abundant number, since it is smaller than the sum of its proper divisors (338409305988).

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

201000121212 is a wasteful number, since it uses less digits than its factorization.

201000121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125707 (or 125705 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201000121212 its reverse (212121000102), we get a palindrome (413121121314).

The spelling of 201000121212 in words is "two hundred one billion, one hundred twenty-one thousand, two hundred twelve".