201012121212 has 72 divisors (see below), whose sum is σ = 569326294656. Its totient is φ = 54934985952.

The previous prime is 201012121159. The next prime is 201012121217. The reversal of 201012121212 is 212121210102.

It is a junction number, because it is equal to n+sod(n) for n = 201012121191 and 201012121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012121217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7418158 + ... + 7445205.

It is an arithmetic number, because the mean of its divisors is an integer number (7907309648).

Almost surely, 2^201012121212 is an apocalyptic number.

It is an amenable number.

201012121212 is an abundant number, since it is smaller than the sum of its proper divisors (368314173444).

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

201012121212 is a wasteful number, since it uses less digits than its factorization.

201012121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863407 (or 14863398 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201012121212 its reverse (212121210102), we get a palindrome (413133331314).

The spelling of 201012121212 in words is "two hundred one billion, twelve million, one hundred twenty-one thousand, two hundred twelve".