202221021112 has 32 divisors (see below), whose sum is σ = 414245009520. Its totient is φ = 91782845440.

The previous prime is 202221021109. The next prime is 202221021113. The reversal of 202221021112 is 211120122202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637593 + ... + 1756744.

Almost surely, 2^202221021112 is an apocalyptic number.

202221021112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202221021112 is an abundant number, since it is smaller than the sum of its proper divisors (212023988408).

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

202221021112 is a wasteful number, since it uses less digits than its factorization.

202221021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395031 (or 3395027 counting only the distinct ones).

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

Adding to 202221021112 its reverse (211120122202), we get a palindrome (413341143314).

The spelling of 202221021112 in words is "two hundred two billion, two hundred twenty-one million, twenty-one thousand, one hundred twelve".