202223121212 has 48 divisors (see below), whose sum is σ = 414048805632. Its totient is φ = 84611278080.

The previous prime is 202223121203. The next prime is 202223121241. The reversal of 202223121212 is 212121322202.

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, 2562983 + ... + 2640705.

It is an arithmetic number, because the mean of its divisors is an integer number (8626016784).

Almost surely, 2^202223121212 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 202223121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207024402816).

202223121212 is an abundant number, since it is smaller than the sum of its proper divisors (211825684420).

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

202223121212 is a wasteful number, since it uses less digits than its factorization.

202223121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79938 (or 79936 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 202223121212 its reverse (212121322202), we get a palindrome (414344443414).

The spelling of 202223121212 in words is "two hundred two billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred twelve".