201212101222 has 32 divisors (see below), whose sum is σ = 343982311200. Its totient is φ = 87431904000.

The previous prime is 201212101177. The next prime is 201212101249. The reversal of 201212101222 is 222101212102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201212101196 and 201212101205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496847 + ... + 1625722.

It is an arithmetic number, because the mean of its divisors is an integer number (10749447225).

Almost surely, 2^201212101222 is an apocalyptic number.

201212101222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201212101222 is a deficient number, since it is larger than the sum of its proper divisors (142770209978).

201212101222 is a wasteful number, since it uses less digits than its factorization.

201212101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122712.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201212101222 its reverse (222101212102), we get a palindrome (423313313324).

The spelling of 201212101222 in words is "two hundred one billion, two hundred twelve million, one hundred one thousand, two hundred twenty-two".