1223122031330 has 16 divisors (see below), whose sum is σ = 2277537576120. Its totient is φ = 472378163712.

The previous prime is 1223122031291. The next prime is 1223122031387. The reversal of 1223122031330 is 331302213221.

It can be written as a sum of positive squares in 4 ways, for example, as 575372312089 + 647749719241 = 758533^2 + 804829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1223122031296 and 1223122031305.

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, 2108830799 + ... + 2108831378.

Almost surely, 2^{1223122031330} is an apocalyptic number.

1223122031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223122031330 is a deficient number, since it is larger than the sum of its proper divisors (1054415544790).

1223122031330 is a wasteful number, since it uses less digits than its factorization.

1223122031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217662213.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1223122031330 its reverse (331302213221), we get a palindrome (1554424244551).

The spelling of 1223122031330 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-two million, thirty-one thousand, three hundred thirty".