202212120212 has 24 divisors (see below), whose sum is σ = 367468021032. Its totient is φ = 97288819200.

The previous prime is 202212120191. The next prime is 202212120247. The reversal of 202212120212 is 212021212202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 587771536 + 201624348676 = 24244^2 + 449026^2 .

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, 8433239 + ... + 8457182.

It is an arithmetic number, because the mean of its divisors is an integer number (15311167543).

Almost surely, 2^202212120212 is an apocalyptic number.

It is an amenable number.

202212120212 is a deficient number, since it is larger than the sum of its proper divisors (165255900820).

202212120212 is a wasteful number, since it uses less digits than its factorization.

202212120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890539 (or 16890537 counting only the distinct ones).

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

Adding to 202212120212 its reverse (212021212202), we get a palindrome (414233332414).

The spelling of 202212120212 in words is "two hundred two billion, two hundred twelve million, one hundred twenty thousand, two hundred twelve".