221223333012 has 48 divisors (see below), whose sum is σ = 596238293952. Its totient is φ = 63093998080.

The previous prime is 221223332999. The next prime is 221223333013. The reversal of 221223333012 is 210333322122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223333013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49289943 + ... + 49294430.

It is an arithmetic number, because the mean of its divisors is an integer number (12421631124).

Almost surely, 2^221223333012 is an apocalyptic number.

221223333012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221223333012 is an abundant number, since it is smaller than the sum of its proper divisors (375014960940).

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

221223333012 is a wasteful number, since it uses less digits than its factorization.

221223333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98584408 (or 98584406 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221223333012 its reverse (210333322122), we get a palindrome (431556655134).

The spelling of 221223333012 in words is "two hundred twenty-one billion, two hundred twenty-three million, three hundred thirty-three thousand, twelve".