223121322231222 has 16 divisors (see below), whose sum is σ = 448822081715760. Its totient is φ = 73943867868192.

The previous prime is 223121322231211. The next prime is 223121322231289. The reversal of 223121322231222 is 222132223121322.

It is a super-3 number, since 3×223121322231222³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a self number, because there is not a number n which added to its sum of digits gives 223121322231222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107476551097 + ... + 107476553172.

It is an arithmetic number, because the mean of its divisors is an integer number (28051380107235).

Almost surely, 2^{223121322231222} is an apocalyptic number.

223121322231222 is an abundant number, since it is smaller than the sum of its proper divisors (225700759484538).

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

223121322231222 is a wasteful number, since it uses less digits than its factorization.

223121322231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214953104447.

The product of its digits is 13824, while the sum is 30.

Adding to 223121322231222 its reverse (222132223121322), we get a palindrome (445253545352544).

The spelling of 223121322231222 in words is "two hundred twenty-three trillion, one hundred twenty-one billion, three hundred twenty-two million, two hundred thirty-one thousand, two hundred twenty-two".