23212020222 has 48 divisors (see below), whose sum is σ = 50525804160. Its totient is φ = 7701535296.

The previous prime is 23212020203. The next prime is 23212020229. The reversal of 23212020222 is 22202021232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23212020195 and 23212020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212020229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10375288 + ... + 10377524.

It is an arithmetic number, because the mean of its divisors is an integer number (1052620920).

Almost surely, 2^23212020222 is an apocalyptic number.

23212020222 is an abundant number, since it is smaller than the sum of its proper divisors (27313783938).

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

23212020222 is a wasteful number, since it uses less digits than its factorization.

23212020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23212020222 its reverse (22202021232), we get a palindrome (45414041454).

The spelling of 23212020222 in words is "twenty-three billion, two hundred twelve million, twenty thousand, two hundred twenty-two".