220021012011 has 16 divisors (see below), whose sum is σ = 306329057280. Its totient is φ = 140205690240.

The previous prime is 220021012009. The next prime is 220021012033. The reversal of 220021012011 is 110210120022.

220021012011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220021012011 - 2¹ = 220021012009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220021012051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008670 + ... + 1207251.

It is an arithmetic number, because the mean of its divisors is an integer number (19145566080).

Almost surely, 2^220021012011 is an apocalyptic number.

220021012011 is a deficient number, since it is larger than the sum of its proper divisors (86308045269).

220021012011 is a wasteful number, since it uses less digits than its factorization.

220021012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217386.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220021012011 its reverse (110210120022), we get a palindrome (330231132033).

The spelling of 220021012011 in words is "two hundred twenty billion, twenty-one million, twelve thousand, eleven".