1220303333011 has 4 divisors (see below), whose sum is σ = 1394632380592. Its totient is φ = 1045974285432.

The previous prime is 1220303333003. The next prime is 1220303333069. The reversal of 1220303333011 is 1103333030221.

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 1220303333011 - 2³ = 1220303333003 is a prime.

It is a super-2 number, since 2×1220303333011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220303333071) 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, 87164523780 + ... + 87164523793.

It is an arithmetic number, because the mean of its divisors is an integer number (348658095148).

Almost surely, 2^{1220303333011} is an apocalyptic number.

1220303333011 is a deficient number, since it is larger than the sum of its proper divisors (174329047581).

1220303333011 is an equidigital number, since it uses as much as digits as its factorization.

1220303333011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174329047580.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1220303333011 its reverse (1103333030221), we get a palindrome (2323636363232).

The spelling of 1220303333011 in words is "one trillion, two hundred twenty billion, three hundred three million, three hundred thirty-three thousand, eleven".