1223322111212 has 24 divisors (see below), whose sum is σ = 2156616522480. Its totient is φ = 607146693120.

The previous prime is 1223322111199. The next prime is 1223322111283. The reversal of 1223322111212 is 2121112233221.

It is a super-2 number, since 2×1223322111212² (a number of 25 digits) contains 22 as substring.

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, 7132964 + ... + 7302452.

It is an arithmetic number, because the mean of its divisors is an integer number (89859021770).

Almost surely, 2^{1223322111212} is an apocalyptic number.

It is an amenable number.

1223322111212 is a deficient number, since it is larger than the sum of its proper divisors (933294411268).

1223322111212 is a wasteful number, since it uses less digits than its factorization.

1223322111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182801 (or 182799 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 1223322111212 its reverse (2121112233221), we get a palindrome (3344434344433).

The spelling of 1223322111212 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-two million, one hundred eleven thousand, two hundred twelve".