202122422012 has 144 divisors (see below), whose sum is σ = 447327020448. Its totient is φ = 79370403840.

The previous prime is 202122422003. The next prime is 202122422053. The reversal of 202122422012 is 210224221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23129708 + ... + 23138444.

It is an arithmetic number, because the mean of its divisors is an integer number (3106437642).

Almost surely, 2^202122422012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202122422012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223663510224).

202122422012 is an abundant number, since it is smaller than the sum of its proper divisors (245204598436).

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

202122422012 is a wasteful number, since it uses less digits than its factorization.

202122422012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956 (or 8947 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202122422012 its reverse (210224221202), we get a palindrome (412346643214).

The spelling of 202122422012 in words is "two hundred two billion, one hundred twenty-two million, four hundred twenty-two thousand, twelve".