223212321222 has 32 divisors (see below), whose sum is σ = 487039267584. Its totient is φ = 67635852000.

The previous prime is 223212321221. The next prime is 223212321307. The reversal of 223212321222 is 222123212322.

It is a super-3 number, since 3×223212321222³ (a number of 35 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 223212321192 and 223212321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223212321221) 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, 1047708 + ... + 1242624.

It is an arithmetic number, because the mean of its divisors is an integer number (15219977112).

Almost surely, 2^223212321222 is an apocalyptic number.

223212321222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

223212321222 is an abundant number, since it is smaller than the sum of its proper divisors (263826946362).

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

223212321222 is a wasteful number, since it uses less digits than its factorization.

223212321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212284.

The product of its digits is 2304, while the sum is 24.

Adding to 223212321222 its reverse (222123212322), we get a palindrome (445335533544).

The spelling of 223212321222 in words is "two hundred twenty-three billion, two hundred twelve million, three hundred twenty-one thousand, two hundred twenty-two".