1221322344333 has 32 divisors (see below), whose sum is σ = 2058389442816. Its totient is φ = 626802789888.

The previous prime is 1221322344283. The next prime is 1221322344377. The reversal of 1221322344333 is 3334432231221.

It is not a de Polignac number, because 1221322344333 - 2¹⁶ = 1221322278797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1221322344294 and 1221322344303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221322340333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60445416 + ... + 60465617.

It is an arithmetic number, because the mean of its divisors is an integer number (64324670088).

Almost surely, 2^{1221322344333} is an apocalyptic number.

1221322344333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1221322344333 is a deficient number, since it is larger than the sum of its proper divisors (837067098483).

1221322344333 is a wasteful number, since it uses less digits than its factorization.

1221322344333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120911093.

The product of its digits is 62208, while the sum is 33.

Adding to 1221322344333 its reverse (3334432231221), we get a palindrome (4555754575554).

The spelling of 1221322344333 in words is "one trillion, two hundred twenty-one billion, three hundred twenty-two million, three hundred forty-four thousand, three hundred thirty-three".