1223211031112 has 64 divisors (see below), whose sum is σ = 2711924064000. Its totient is φ = 506086753536.

The previous prime is 1223211031111. The next prime is 1223211031117. The reversal of 1223211031112 is 2111301123221.

It is not an unprimeable number, because it can be changed into a prime (1223211031111) 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, 12747698 + ... + 12843294.

It is an arithmetic number, because the mean of its divisors is an integer number (42373813500).

Almost surely, 2^{1223211031112} is an apocalyptic number.

It is an amenable number.

1223211031112 is an abundant number, since it is smaller than the sum of its proper divisors (1488713032888).

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

1223211031112 is a wasteful number, since it uses less digits than its factorization.

1223211031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103518 (or 103514 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1223211031112 its reverse (2111301123221), we get a palindrome (3334512154333).

The spelling of 1223211031112 in words is "one trillion, two hundred twenty-three billion, two hundred eleven million, thirty-one thousand, one hundred twelve".