220203011 has 6 divisors (see below), whose sum is σ = 256154580. Its totient is φ = 188745396.

The previous prime is 220203007. The next prime is 220203017. The reversal of 220203011 is 110302022.

It is a happy number.

It is not a de Polignac number, because 220203011 - 2² = 220203007 is a prime.

It is a super-2 number, since 2×220203011² = 96978732106932242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220202983 and 220203001.

It is not an unprimeable number, because it can be changed into a prime (220203017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2246921 + ... + 2247018.

It is an arithmetic number, because the mean of its divisors is an integer number (42692430).

Almost surely, 2^220203011 is an apocalyptic number.

220203011 is a deficient number, since it is larger than the sum of its proper divisors (35951569).

220203011 is an equidigital number, since it uses as much as digits as its factorization.

220203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493953 (or 4493946 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220203011 is about 14839.2388955768. The cubic root of 220203011 is about 603.8667043178.

Adding to 220203011 its reverse (110302022), we get a palindrome (330505033).

The spelling of 220203011 in words is "two hundred twenty million, two hundred three thousand, eleven".