220201022011 has 6 divisors (see below), whose sum is σ = 223023666012. Its totient is φ = 217413661140.

The previous prime is 220201022009. The next prime is 220201022021. The reversal of 220201022011 is 110220102022.

It is a happy number.

It is not a de Polignac number, because 220201022011 - 2¹ = 220201022009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201021982 and 220201022000.

It is not an unprimeable number, because it can be changed into a prime (220201022021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17635245 + ... + 17647726.

It is an arithmetic number, because the mean of its divisors is an integer number (37170611002).

Almost surely, 2^220201022011 is an apocalyptic number.

220201022011 is a deficient number, since it is larger than the sum of its proper divisors (2822644001).

220201022011 is an frugal number, since it uses more digits than its factorization.

220201022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35283129 (or 35283050 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220201022011 its reverse (110220102022), we get a palindrome (330421124033).

The spelling of 220201022011 in words is "two hundred twenty billion, two hundred one million, twenty-two thousand, eleven".