180220021020011 has 8 divisors (see below), whose sum is σ = 205971619459584. Its totient is φ = 154469892868200.

The previous prime is 180220021019957. The next prime is 180220021020023. The reversal of 180220021020011 is 110020120022081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-180220021020011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180220021020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367309265 + ... + 367799586.

It is an arithmetic number, because the mean of its divisors is an integer number (25746452432448).

Almost surely, 2^{180220021020011} is an apocalyptic number.

180220021020011 is a deficient number, since it is larger than the sum of its proper divisors (25751598439573).

180220021020011 is an equidigital number, since it uses as much as digits as its factorization.

180220021020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735143881.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 180220021020011 its reverse (110020120022081), we get a palindrome (290240141042092).

The spelling of 180220021020011 in words is "one hundred eighty trillion, two hundred twenty billion, twenty-one million, twenty thousand, eleven".