201222201212 has 24 divisors (see below), whose sum is σ = 360864556416. Its totient is φ = 98147201328.

The previous prime is 201222201161. The next prime is 201222201217. The reversal of 201222201212 is 212102222102.

It is a happy number.

201222201212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201222201212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222201217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3617198 + ... + 3672405.

It is an arithmetic number, because the mean of its divisors is an integer number (15036023184).

Almost surely, 2^201222201212 is an apocalyptic number.

It is an amenable number.

201222201212 is a deficient number, since it is larger than the sum of its proper divisors (159642355204).

201222201212 is a wasteful number, since it uses less digits than its factorization.

201222201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289777 (or 7289775 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201222201212 its reverse (212102222102), we get a palindrome (413324423314).

The spelling of 201222201212 in words is "two hundred one billion, two hundred twenty-two million, two hundred one thousand, two hundred twelve".