1223320032112 has 40 divisors (see below), whose sum is σ = 2495042092800. Its totient is φ = 579441120192.

The previous prime is 1223320032091. The next prime is 1223320032119. The reversal of 1223320032112 is 2112300233221.

It is a super-2 number, since 2×1223320032112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223320032119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7728063 + ... + 7884769.

It is an arithmetic number, because the mean of its divisors is an integer number (62376052320).

Almost surely, 2^{1223320032112} is an apocalyptic number.

It is an amenable number.

1223320032112 is an abundant number, since it is smaller than the sum of its proper divisors (1271722060688).

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

1223320032112 is a wasteful number, since it uses less digits than its factorization.

1223320032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182413 (or 182407 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1223320032112 its reverse (2112300233221), we get a palindrome (3335620265333).

The spelling of 1223320032112 in words is "one trillion, two hundred twenty-three billion, three hundred twenty million, thirty-two thousand, one hundred twelve".