1220311322133 has 16 divisors (see below), whose sum is σ = 1725480164736. Its totient is φ = 764490997760.

The previous prime is 1220311322107. The next prime is 1220311322143. The reversal of 1220311322133 is 3312231130221.

It is a cyclic number.

It is not a de Polignac number, because 1220311322133 - 2¹³ = 1220311313941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220311322143) 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, 18631641 + ... + 18697022.

It is an arithmetic number, because the mean of its divisors is an integer number (107842510296).

Almost surely, 2^{1220311322133} is an apocalyptic number.

It is an amenable number.

1220311322133 is a deficient number, since it is larger than the sum of its proper divisors (505168842603).

1220311322133 is a wasteful number, since it uses less digits than its factorization.

1220311322133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37329324.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1220311322133 its reverse (3312231130221), we get a palindrome (4532542452354).

The spelling of 1220311322133 in words is "one trillion, two hundred twenty billion, three hundred eleven million, three hundred twenty-two thousand, one hundred thirty-three".