2223301212 has 144 divisors (see below), whose sum is σ = 6249664512. Its totient is φ = 660829440.

The previous prime is 2223301193. The next prime is 2223301217. The reversal of 2223301212 is 2121033222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223301217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5804773 + ... + 5805155.

It is an arithmetic number, because the mean of its divisors is an integer number (43400448).

Almost surely, 2^2223301212 is an apocalyptic number.

2223301212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223301212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124832256).

2223301212 is an abundant number, since it is smaller than the sum of its proper divisors (4026363300).

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

2223301212 is a wasteful number, since it uses less digits than its factorization.

2223301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2223301212 is about 47151.8951050750. The cubic root of 2223301212 is about 1305.1670513239.

Adding to 2223301212 its reverse (2121033222), we get a palindrome (4344334434).

The spelling of 2223301212 in words is "two billion, two hundred twenty-three million, three hundred one thousand, two hundred twelve".