1220132233211 has 4 divisors (see below), whose sum is σ = 1220145129312. Its totient is φ = 1220119337112.

The previous prime is 1220132233193. The next prime is 1220132233217. The reversal of 1220132233211 is 1123322310221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220132233211 - 2⁶ = 1220132233147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220132233217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6305075 + ... + 6495708.

It is an arithmetic number, because the mean of its divisors is an integer number (305036282328).

Almost surely, 2^{1220132233211} is an apocalyptic number.

1220132233211 is a deficient number, since it is larger than the sum of its proper divisors (12896101).

1220132233211 is an equidigital number, since it uses as much as digits as its factorization.

1220132233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12896100.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1220132233211 its reverse (1123322310221), we get a palindrome (2343454543432).

The spelling of 1220132233211 in words is "one trillion, two hundred twenty billion, one hundred thirty-two million, two hundred thirty-three thousand, two hundred eleven".