1223101111322 has 4 divisors (see below), whose sum is σ = 1834651666986. Its totient is φ = 611550555660.

The previous prime is 1223101111321. The next prime is 1223101111363. The reversal of 1223101111322 is 2231111013221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1223101071721 + 39601 = 1105939^2 + 199^2 .

It is a super-2 number, since 2×1223101111322² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223101111294 and 1223101111303.

It is not an unprimeable number, because it can be changed into a prime (1223101111321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305775277829 + ... + 305775277832.

Almost surely, 2^{1223101111322} is an apocalyptic number.

1223101111322 is a deficient number, since it is larger than the sum of its proper divisors (611550555664).

1223101111322 is an equidigital number, since it uses as much as digits as its factorization.

1223101111322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611550555663.

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

Adding to 1223101111322 its reverse (2231111013221), we get a palindrome (3454212124543).

The spelling of 1223101111322 in words is "one trillion, two hundred twenty-three billion, one hundred one million, one hundred eleven thousand, three hundred twenty-two".