220021021011 has 16 divisors (see below), whose sum is σ = 331066114560. Its totient is φ = 128747932320.

The previous prime is 220021020991. The next prime is 220021021019. The reversal of 220021021011 is 110120120022.

220021021011 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 220021021011 - 2¹³ = 220021012819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220021021019) 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, 114952555 + ... + 114954468.

It is an arithmetic number, because the mean of its divisors is an integer number (20691632160).

Almost surely, 2^220021021011 is an apocalyptic number.

220021021011 is a deficient number, since it is larger than the sum of its proper divisors (111045093549).

220021021011 is a wasteful number, since it uses less digits than its factorization.

220021021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229907066.

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

Adding to 220021021011 its reverse (110120120022), we get a palindrome (330141141033).

The spelling of 220021021011 in words is "two hundred twenty billion, twenty-one million, twenty-one thousand, eleven".